diff --git a/e2e/data-connect/package.json b/e2e/data-connect/package.json
index d9d1f234ab1..ced7132fea9 100644
--- a/e2e/data-connect/package.json
+++ b/e2e/data-connect/package.json
@@ -13,7 +13,7 @@
     "@types/node": "18.19.83",
     "ts-node": "^10.9.2",
     "tslib": "^2.1.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "dependencies": {
     "firebase": "11.8.1"
diff --git a/e2e/data-connect/yarn.lock b/e2e/data-connect/yarn.lock
index d8d5a981fef..1ed45d5ef6e 100644
--- a/e2e/data-connect/yarn.lock
+++ b/e2e/data-connect/yarn.lock
@@ -737,10 +737,10 @@ tslib@^2.1.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.8.1.tgz#612efe4ed235d567e8aba5f2a5fab70280ade83f"
   integrity sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==
 
-typescript@5.5.4:
-  version "5.5.4"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+typescript@5.8.3:
+  version "5.8.3"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 undici-types@~5.26.4:
   version "5.26.5"
diff --git a/e2e/smoke-tests/package.json b/e2e/smoke-tests/package.json
index ca33e7f696f..33de12cf3a4 100644
--- a/e2e/smoke-tests/package.json
+++ b/e2e/smoke-tests/package.json
@@ -29,7 +29,7 @@
     "jest": "29.7.0",
     "jest-environment-jsdom": "29.7.0",
     "ts-node": "10.9.2",
-    "typescript": "5.5.4",
+    "typescript": "5.8.3",
     "webpack": "5.98.0",
     "webpack-cli": "5.1.4",
     "webpack-dev-server": "5.2.0"
diff --git a/e2e/smoke-tests/yarn.lock b/e2e/smoke-tests/yarn.lock
index b9a6d8e4451..19417175b8a 100644
--- a/e2e/smoke-tests/yarn.lock
+++ b/e2e/smoke-tests/yarn.lock
@@ -5422,10 +5422,10 @@ type-is@~1.6.18:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
-typescript@5.5.4:
-  version "5.5.4"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+typescript@5.8.3:
+  version "5.8.3"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 undici-types@~6.19.8:
   version "6.19.8"
diff --git a/integration/compat-interop/package.json b/integration/compat-interop/package.json
index 106d7606644..9d996598570 100644
--- a/integration/compat-interop/package.json
+++ b/integration/compat-interop/package.json
@@ -24,7 +24,7 @@
     "@firebase/remote-config-compat": "0.2.18"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "engines": {
     "node": ">=18.0.0"
diff --git a/integration/compat-typings/package.json b/integration/compat-typings/package.json
index 45ed087a0d7..0adedc9ba47 100644
--- a/integration/compat-typings/package.json
+++ b/integration/compat-typings/package.json
@@ -10,7 +10,7 @@
     "firebase": "*"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "engines": {
     "node": ">=18.0.0"
diff --git a/integration/firestore/package.json b/integration/firestore/package.json
index 04544d11eca..f9d1b574b67 100644
--- a/integration/firestore/package.json
+++ b/integration/firestore/package.json
@@ -22,7 +22,7 @@
     "gulp": "4.0.2",
     "gulp-filter": "7.0.0",
     "gulp-replace": "1.1.4",
-    "typescript": "5.5.4",
+    "typescript": "5.8.3",
     "webpack-stream": "7.0.0"
   },
   "engines": {
diff --git a/package.json b/package.json
index ce2c5847573..80da6352141 100644
--- a/package.json
+++ b/package.json
@@ -155,7 +155,7 @@
     "tsec": "0.2.8",
     "tslint": "6.1.3",
     "typedoc": "0.16.11",
-    "typescript": "5.5.4",
+    "typescript": "5.8.3",
     "watch": "1.0.2",
     "webpack": "5.98.0",
     "yargs": "17.7.2"
diff --git a/packages/ai/package.json b/packages/ai/package.json
index d03f6dc332d..93771fbbd05 100644
--- a/packages/ai/package.json
+++ b/packages/ai/package.json
@@ -62,7 +62,7 @@
     "rollup": "2.79.2",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/ai",
diff --git a/packages/analytics-compat/package.json b/packages/analytics-compat/package.json
index ef13d21343e..0a9448d99ea 100644
--- a/packages/analytics-compat/package.json
+++ b/packages/analytics-compat/package.json
@@ -26,7 +26,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/analytics-compat",
diff --git a/packages/analytics-interop-types/package.json b/packages/analytics-interop-types/package.json
index d96eeff69d5..922fcc96f00 100644
--- a/packages/analytics-interop-types/package.json
+++ b/packages/analytics-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/analytics-types/package.json b/packages/analytics-types/package.json
index 2798c23b3fe..5133d7fa1d7 100644
--- a/packages/analytics-types/package.json
+++ b/packages/analytics-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/analytics/package.json b/packages/analytics/package.json
index 0627556deed..a7454bf36f6 100644
--- a/packages/analytics/package.json
+++ b/packages/analytics/package.json
@@ -54,7 +54,7 @@
     "@rollup/plugin-json": "6.1.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/analytics",
diff --git a/packages/app-check-compat/package.json b/packages/app-check-compat/package.json
index eb2af822b52..bbdfb29ccd7 100644
--- a/packages/app-check-compat/package.json
+++ b/packages/app-check-compat/package.json
@@ -49,7 +49,7 @@
     "@rollup/plugin-json": "6.1.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/app-check",
diff --git a/packages/app-check-interop-types/package.json b/packages/app-check-interop-types/package.json
index c7e45614eea..335586d3159 100644
--- a/packages/app-check-interop-types/package.json
+++ b/packages/app-check-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/app-check-types/package.json b/packages/app-check-types/package.json
index 92439788566..b7fdea01bf9 100644
--- a/packages/app-check-types/package.json
+++ b/packages/app-check-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/app-check/package.json b/packages/app-check/package.json
index caea78cc3bc..8e1dd5d74a8 100644
--- a/packages/app-check/package.json
+++ b/packages/app-check/package.json
@@ -50,7 +50,7 @@
     "@rollup/plugin-json": "6.1.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/app-check",
diff --git a/packages/app-compat/package.json b/packages/app-compat/package.json
index bed5553a39c..9bb5c9568c6 100644
--- a/packages/app-compat/package.json
+++ b/packages/app-compat/package.json
@@ -48,7 +48,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/app-compat",
diff --git a/packages/app-types/package.json b/packages/app-types/package.json
index 4c49efb3512..1a64c0631df 100644
--- a/packages/app-types/package.json
+++ b/packages/app-types/package.json
@@ -24,6 +24,6 @@
     "@firebase/logger": "0.2.6"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/app/package.json b/packages/app/package.json
index 7fbcff0bdcf..26e8432b2e0 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -52,7 +52,7 @@
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-dts": "5.3.1",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/app",
diff --git a/packages/auth-compat/package.json b/packages/auth-compat/package.json
index c56195cf991..a4d7d289378 100644
--- a/packages/auth-compat/package.json
+++ b/packages/auth-compat/package.json
@@ -63,7 +63,7 @@
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
     "selenium-webdriver": "4.30.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/auth-compat",
diff --git a/packages/auth-interop-types/package.json b/packages/auth-interop-types/package.json
index ecea25d0c00..4ff6f893889 100644
--- a/packages/auth-interop-types/package.json
+++ b/packages/auth-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/auth-types/package.json b/packages/auth-types/package.json
index 66dced1d568..113c2f38f68 100644
--- a/packages/auth-types/package.json
+++ b/packages/auth-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/auth/package.json b/packages/auth/package.json
index 4dc43b98ea3..3f10d960400 100644
--- a/packages/auth/package.json
+++ b/packages/auth/package.json
@@ -142,7 +142,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "selenium-webdriver": "4.30.0",
     "totp-generator": "0.0.14",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/auth",
diff --git a/packages/component/package.json b/packages/component/package.json
index 9bc11a5784b..2c472875f17 100644
--- a/packages/component/package.json
+++ b/packages/component/package.json
@@ -38,7 +38,7 @@
   "devDependencies": {
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/component",
diff --git a/packages/data-connect/package.json b/packages/data-connect/package.json
index ef169dfa5ff..c662a289dd4 100644
--- a/packages/data-connect/package.json
+++ b/packages/data-connect/package.json
@@ -58,7 +58,7 @@
     "@firebase/app": "0.13.2",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/data-connect",
diff --git a/packages/database-compat/package.json b/packages/database-compat/package.json
index 01a42da2a20..f8bc7242163 100644
--- a/packages/database-compat/package.json
+++ b/packages/database-compat/package.json
@@ -58,7 +58,7 @@
   },
   "devDependencies": {
     "@firebase/app-compat": "0.4.2",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/database-compat",
diff --git a/packages/database-types/package.json b/packages/database-types/package.json
index 89b1c615e33..a9b7b03fe74 100644
--- a/packages/database-types/package.json
+++ b/packages/database-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/database/package.json b/packages/database/package.json
index ce7811adfe4..649b64a45cb 100644
--- a/packages/database/package.json
+++ b/packages/database/package.json
@@ -60,7 +60,7 @@
     "@firebase/app": "0.13.2",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/database",
diff --git a/packages/firebase/package.json b/packages/firebase/package.json
index ef57d830656..355ef9de063 100644
--- a/packages/firebase/package.json
+++ b/packages/firebase/package.json
@@ -439,7 +439,7 @@
     "gulp": "4.0.2",
     "gulp-sourcemaps": "3.0.0",
     "gulp-replace": "1.1.4",
-    "typescript": "5.5.4",
+    "typescript": "5.8.3",
     "rollup-plugin-license": "3.5.3"
   },
   "components": [
diff --git a/packages/firestore-compat/package.json b/packages/firestore-compat/package.json
index 7d446495832..e0981264dbe 100644
--- a/packages/firestore-compat/package.json
+++ b/packages/firestore-compat/package.json
@@ -61,7 +61,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "@rollup/plugin-node-resolve": "16.0.0",
     "ts-node": "10.9.2",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "license": "Apache-2.0",
   "typings": "dist/src/index.d.ts",
diff --git a/packages/firestore-types/package.json b/packages/firestore-types/package.json
index d1cf512ec53..65535aa67b2 100644
--- a/packages/firestore-types/package.json
+++ b/packages/firestore-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/firestore/package.json b/packages/firestore/package.json
index 519243487c2..28696d165d4 100644
--- a/packages/firestore/package.json
+++ b/packages/firestore/package.json
@@ -130,7 +130,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-dts": "5.3.1",
     "ts-node": "10.9.2",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/firestore",
diff --git a/packages/functions-compat/package.json b/packages/functions-compat/package.json
index 6fa6b8e45b2..459d5d874c7 100644
--- a/packages/functions-compat/package.json
+++ b/packages/functions-compat/package.json
@@ -33,7 +33,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/functions-compat",
diff --git a/packages/functions-types/package.json b/packages/functions-types/package.json
index f06c4489e6a..6ae8c91cd91 100644
--- a/packages/functions-types/package.json
+++ b/packages/functions-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/functions/package.json b/packages/functions/package.json
index 62a63f5ce38..782c1913c91 100644
--- a/packages/functions/package.json
+++ b/packages/functions/package.json
@@ -53,7 +53,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/functions",
diff --git a/packages/installations-compat/package.json b/packages/installations-compat/package.json
index 6dab5586392..423d368a3a3 100644
--- a/packages/installations-compat/package.json
+++ b/packages/installations-compat/package.json
@@ -51,7 +51,7 @@
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-uglify": "6.0.4",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "peerDependencies": {
     "@firebase/app-compat": "0.x"
diff --git a/packages/installations-types/package.json b/packages/installations-types/package.json
index fafe3b63102..d564bbb2641 100644
--- a/packages/installations-types/package.json
+++ b/packages/installations-types/package.json
@@ -23,6 +23,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/installations/package.json b/packages/installations/package.json
index 318843e1e1a..4fd5e70f97b 100644
--- a/packages/installations/package.json
+++ b/packages/installations/package.json
@@ -56,7 +56,7 @@
     "@rollup/plugin-node-resolve": "16.0.0",
     "rollup-plugin-typescript2": "0.36.0",
     "rollup-plugin-uglify": "6.0.4",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "peerDependencies": {
     "@firebase/app": "0.x"
diff --git a/packages/logger/package.json b/packages/logger/package.json
index dd492c36915..1459158fc4d 100644
--- a/packages/logger/package.json
+++ b/packages/logger/package.json
@@ -37,7 +37,7 @@
   "devDependencies": {
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/logger",
diff --git a/packages/messaging-compat/package.json b/packages/messaging-compat/package.json
index 517bd5a2304..ff674a8697d 100644
--- a/packages/messaging-compat/package.json
+++ b/packages/messaging-compat/package.json
@@ -48,7 +48,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
     "ts-essentials": "9.4.2",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/messaging",
diff --git a/packages/messaging-interop-types/package.json b/packages/messaging-interop-types/package.json
index 9df85275ae1..6f752d28f1b 100644
--- a/packages/messaging-interop-types/package.json
+++ b/packages/messaging-interop-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/messaging/package.json b/packages/messaging/package.json
index 7dd640fdb16..73edeb47acc 100644
--- a/packages/messaging/package.json
+++ b/packages/messaging/package.json
@@ -65,7 +65,7 @@
     "rollup-plugin-typescript2": "0.36.0",
     "@rollup/plugin-json": "6.1.0",
     "ts-essentials": "10.0.4",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/messaging",
diff --git a/packages/performance-compat/package.json b/packages/performance-compat/package.json
index 9ce60ab51af..7e1b2f3178a 100644
--- a/packages/performance-compat/package.json
+++ b/packages/performance-compat/package.json
@@ -50,7 +50,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4",
+    "typescript": "5.8.3",
     "@firebase/app-compat": "0.4.2"
   },
   "repository": {
diff --git a/packages/performance-types/package.json b/packages/performance-types/package.json
index 0d90a465501..3c956b30ba6 100644
--- a/packages/performance-types/package.json
+++ b/packages/performance-types/package.json
@@ -12,7 +12,7 @@
     "index.d.ts"
   ],
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/performance-types",
diff --git a/packages/performance/package.json b/packages/performance/package.json
index 4bf4f3e4c5d..99d2ad0fe51 100644
--- a/packages/performance/package.json
+++ b/packages/performance/package.json
@@ -51,7 +51,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/performance",
diff --git a/packages/remote-config-compat/package.json b/packages/remote-config-compat/package.json
index bf827f52c7f..833301af573 100644
--- a/packages/remote-config-compat/package.json
+++ b/packages/remote-config-compat/package.json
@@ -49,7 +49,7 @@
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4",
+    "typescript": "5.8.3",
     "@firebase/app-compat": "0.4.2"
   },
   "repository": {
diff --git a/packages/remote-config-types/package.json b/packages/remote-config-types/package.json
index 7de29a27043..d5fa5e9a74c 100644
--- a/packages/remote-config-types/package.json
+++ b/packages/remote-config-types/package.json
@@ -20,6 +20,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/remote-config/package.json b/packages/remote-config/package.json
index ef94a90c53b..b3b1d12f91d 100644
--- a/packages/remote-config/package.json
+++ b/packages/remote-config/package.json
@@ -52,7 +52,7 @@
     "rollup": "2.79.2",
     "rollup-plugin-dts": "5.3.1",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/remote-config",
diff --git a/packages/storage-compat/package.json b/packages/storage-compat/package.json
index e50f685fde5..d7265c51117 100644
--- a/packages/storage-compat/package.json
+++ b/packages/storage-compat/package.json
@@ -49,7 +49,7 @@
     "rollup": "2.79.2",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "files": [
     "dist"
diff --git a/packages/storage-types/package.json b/packages/storage-types/package.json
index 5addb80bc3b..f5941b1c58b 100644
--- a/packages/storage-types/package.json
+++ b/packages/storage-types/package.json
@@ -24,6 +24,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/storage/package.json b/packages/storage/package.json
index c1d272207dd..2469b17aaa4 100644
--- a/packages/storage/package.json
+++ b/packages/storage/package.json
@@ -60,7 +60,7 @@
     "@rollup/plugin-alias": "5.1.1",
     "@rollup/plugin-json": "6.1.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/storage",
diff --git a/packages/template-types/package.json b/packages/template-types/package.json
index 2704ffab6bd..47f1fd47213 100644
--- a/packages/template-types/package.json
+++ b/packages/template-types/package.json
@@ -21,6 +21,6 @@
     "url": "https://github.com/firebase/firebase-js-sdk/issues"
   },
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   }
 }
diff --git a/packages/template/package.json b/packages/template/package.json
index 70aa992a67e..3bcb5676f3a 100644
--- a/packages/template/package.json
+++ b/packages/template/package.json
@@ -51,7 +51,7 @@
     "@firebase/app": "0.13.2",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/template",
diff --git a/packages/util/package.json b/packages/util/package.json
index 0528ad84638..4d920ed7fd5 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -50,7 +50,7 @@
     "@rollup/plugin-replace": "6.0.2",
     "rollup": "2.79.2",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/util",
diff --git a/packages/webchannel-wrapper/package.json b/packages/webchannel-wrapper/package.json
index 07b6385ed07..ebfdb0d79bc 100644
--- a/packages/webchannel-wrapper/package.json
+++ b/packages/webchannel-wrapper/package.json
@@ -37,7 +37,7 @@
     "rollup-plugin-copy": "3.5.0",
     "rollup-plugin-sourcemaps": "0.6.3",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "packages/webchannel-wrapper",
diff --git a/repo-scripts/changelog-generator/package.json b/repo-scripts/changelog-generator/package.json
index 961620142a0..fae3b4e27cf 100644
--- a/repo-scripts/changelog-generator/package.json
+++ b/repo-scripts/changelog-generator/package.json
@@ -23,7 +23,7 @@
   },
   "license": "Apache-2.0",
   "devDependencies": {
-    "typescript": "5.5.4"
+    "typescript": "5.8.3"
   },
   "repository": {
     "directory": "repo-scripts/changelog-generator",
diff --git a/repo-scripts/size-analysis/package.json b/repo-scripts/size-analysis/package.json
index ce4def7c26b..8877bd33e30 100644
--- a/repo-scripts/size-analysis/package.json
+++ b/repo-scripts/size-analysis/package.json
@@ -34,7 +34,7 @@
     "rollup": "2.79.2",
     "rollup-plugin-replace": "2.2.0",
     "rollup-plugin-typescript2": "0.36.0",
-    "typescript": "5.5.4",
+    "typescript": "5.8.3",
     "webpack": "5.98.0",
     "webpack-virtual-modules": "0.6.2",
     "yargs": "17.7.2"
diff --git a/yarn.lock b/yarn.lock
index fe69e44aead..1670561cba7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16082,10 +16082,10 @@ typescript@3.7.x:
   resolved "https://registry.npmjs.org/typescript/-/typescript-3.7.7.tgz#c931733e2ec10dda56b855b379cc488a72a81199"
   integrity sha512-MmQdgo/XenfZPvVLtKZOq9jQQvzaUAUpcKW8Z43x9B2fOm4S5g//tPtMweZUIP+SoBqrVPEIm+dJeQ9dfO0QdA==
 
-typescript@5.5.4:
-  version "5.5.4"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+typescript@5.8.3:
+  version "5.8.3"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz#92f8a3e5e3cf497356f4178c34cd65a7f5e8440e"
+  integrity sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==
 
 typescript@~4.1.3:
   version "4.1.6"