diff --git a/package-lock.json b/package-lock.json
index e8e69241..abce278f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12846,22 +12846,16 @@
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-      "resolved": "https://registry.npmjs.org/terser/-/terser-3.14.1.tgz",
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+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
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       "dev": true,
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-        "commander": "~2.17.1",
+        "commander": "^2.20.0",
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-        "source-map-support": "~0.5.6"
+        "source-map-support": "~0.5.12"
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-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
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diff --git a/package.json b/package.json
index 80884406..0d45ad25 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
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   "devDependencies": {
     "deepmerge": "^4.2.2",
-    "terser": "^3.14.1",
+    "terser": "^4.8.1",
     "web-pack": "^1.0.0"
   },
   "homepage": "https://understanding-economics.github.io/",