diff --git a/.cjs.swcrc b/.cjs.swcrc
index 549a7ad..038490a 100644
--- a/.cjs.swcrc
+++ b/.cjs.swcrc
@@ -18,7 +18,7 @@
     "inlineSourcesContent": true,
     "env": {
         "targets": {
-            "node": 16
+            "node": 18
         }
     }
 }
diff --git a/.es.swcrc b/.es.swcrc
index 7b88b46..0af8740 100644
--- a/.es.swcrc
+++ b/.es.swcrc
@@ -18,7 +18,7 @@
     "inlineSourcesContent": true,
     "env": {
         "targets": {
-            "node": 16
+            "node": 18
         }
     }
 }
diff --git a/bun.lockb b/bun.lockb
index db2cbd5..aaffb97 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 8e976be..a7f76b7 100644
--- a/package.json
+++ b/package.json
@@ -51,6 +51,9 @@
   "dependencies": {
     "@sinclair/typebox": "^0.29.4",
     "fast-querystring": "^1.1.2",
-    "uWebSockets.js": "uNetworking/uWebSockets.js#v20.30.0"
+    "uWebSockets.js": "uNetworking/uWebSockets.js#v20.49.0"
+  },
+  "engines": {
+    "node": ">= 18"
   }
 }
diff --git a/src/index.ts b/src/index.ts
index a27058f..34d6ad2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -66,7 +66,7 @@ export const node =
                 const params: Record<string, string> = {}
 
                 for (const [name, index] of ids)
-                    params[name] = req.getParameter(index)
+                    params[name] = req.getParameter(index)!
 
                 const request = new Request(`http://a.aa${path}`, {
                     body: