diff --git a/tests/integration/build_setup/ts_commonjs/package.json b/tests/integration/build_setup/ts_commonjs/package.json
index 9fdafc3ac..604bf6445 100644
--- a/tests/integration/build_setup/ts_commonjs/package.json
+++ b/tests/integration/build_setup/ts_commonjs/package.json
@@ -17,5 +17,8 @@
     "@google/adk": "file:../../../../core",
     "@google/adk-devtools": "file:../../../../dev",
     "@google/genai": "^2.9.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20.12.7"
   }
 }
diff --git a/tests/integration/build_setup/ts_commonjs_native_addon/package.json b/tests/integration/build_setup/ts_commonjs_native_addon/package.json
index 8c2643423..b8f7fde24 100644
--- a/tests/integration/build_setup/ts_commonjs_native_addon/package.json
+++ b/tests/integration/build_setup/ts_commonjs_native_addon/package.json
@@ -15,5 +15,8 @@
     "@google/adk-devtools": "file:../../../../dev",
     "@google/genai": "^2.9.0",
     "onnxruntime-node": "file:./fake-onnxruntime-node"
+  },
+  "devDependencies": {
+    "@types/node": "^20.12.7"
   }
 }