diff --git a/dev-packages/jsdoc-region-tag/package.json b/dev-packages/jsdoc-region-tag/package.json
index b633019f3..6ac2c861b 100644
--- a/dev-packages/jsdoc-region-tag/package.json
+++ b/dev-packages/jsdoc-region-tag/package.json
@@ -40,7 +40,7 @@
   "devDependencies": {
     "c8": "^9.0.0",
     "gts": "^5.0.0",
-    "mocha": "^9.2.2",
+    "mocha": "^11.0.0",
     "typescript": "^5.1.6"
   },
   "engines": {
diff --git a/packages/gcp-metadata/samples/package.json b/packages/gcp-metadata/samples/package.json
index ffa0a100f..29b2f65d1 100644
--- a/packages/gcp-metadata/samples/package.json
+++ b/packages/gcp-metadata/samples/package.json
@@ -18,6 +18,6 @@
   },
   "devDependencies": {
     "chai": "^4.2.0",
-    "mocha": "^8.0.0"
+    "mocha": "^11.0.0"
   }
 }
\ No newline at end of file
diff --git a/packages/proto3-json-serializer-nodejs/samples/package.json b/packages/proto3-json-serializer-nodejs/samples/package.json
index 61f3043c7..8320de1e8 100644
--- a/packages/proto3-json-serializer-nodejs/samples/package.json
+++ b/packages/proto3-json-serializer-nodejs/samples/package.json
@@ -20,6 +20,6 @@
   },
   "devDependencies": {
     "c8": "^9.0.0",
-    "mocha": "^9.0.0"
+    "mocha": "^11.0.0"
   }
 }
\ No newline at end of file