diff --git a/examples/demo/package.json b/examples/demo/package.json
index c8ae1d3..6221e63 100644
--- a/examples/demo/package.json
+++ b/examples/demo/package.json
@@ -33,7 +33,7 @@
     "umi": "^3.4.21"
   },
   "devDependencies": {
-    "@types/node": "^15.3.0",
+    "@types/node": "^14.6.2",
     "@types/react": "^17.0.5",
     "@types/react-dom": "^17.0.5",
     "@umijs/test": "^3.4.21",
diff --git a/examples/main+renderer/package.json b/examples/main+renderer/package.json
index 607abef..dd833ca 100644
--- a/examples/main+renderer/package.json
+++ b/examples/main+renderer/package.json
@@ -34,7 +34,7 @@
     "umi": "^3.4.21"
   },
   "devDependencies": {
-    "@types/node": "^15.3.0",
+    "@types/node": "^14.6.2",
     "@types/react": "^17.0.5",
     "@types/react-dom": "^17.0.5",
     "@umijs/test": "^3.4.21",
diff --git a/package.json b/package.json
index b749450..0602999 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "electron-builder": "^22.10.5",
     "electron-devtools-installer": "^3.2.0",
     "fs-extra": "^10.0.0",
-    "ts-loader": "^9.1.2",
+    "ts-loader": "^8.2.0",
     "typescript": "^4.2.4",
     "vite": "^2.3.3",
     "webpack": "^5.37.0",