diff --git a/impl/protobuf.js/package-lock.json b/impl/protobuf.js/package-lock.json
index f90c9757..44fbdbde 100644
--- a/impl/protobuf.js/package-lock.json
+++ b/impl/protobuf.js/package-lock.json
@@ -12,7 +12,7 @@
       },
       "devDependencies": {
         "tsx": "^4.7.1",
-        "typescript": "^5.3.3"
+        "typescript": "^5.4.3"
       }
     },
     "node_modules/@babel/parser": {
@@ -1215,9 +1215,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.3.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.3.3.tgz",
-      "integrity": "sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==",
+      "version": "5.4.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.4.3.tgz",
+      "integrity": "sha512-KrPd3PKaCLr78MalgiwJnA25Nm8HAmdwN3mYUYZgG/wizIo9EainNVQI9/yDavtVFRN2h3k8uf3GLHuhDMgEHg==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
diff --git a/impl/protobuf.js/package.json b/impl/protobuf.js/package.json
index 32787eea..a3d57ede 100644
--- a/impl/protobuf.js/package.json
+++ b/impl/protobuf.js/package.json
@@ -8,7 +8,7 @@
     "protobufjs-cli": "^1.1.2"
   },
   "devDependencies": {
-    "typescript": "^5.3.3",
+    "typescript": "^5.4.3",
     "tsx": "^4.7.1"
   }
 }