diff --git a/packages/borderline-devutils/package.json b/packages/borderline-devutils/package.json
index 599f0de8..46d26b75 100644
--- a/packages/borderline-devutils/package.json
+++ b/packages/borderline-devutils/package.json
@@ -78,7 +78,7 @@
         "style-loader": "1.2.1",
         "terser-webpack-plugin": "3.0.7",
         "ts-pnp": "1.2.0",
-        "typescript": "3.9.7",
+        "typescript": "4.0.3",
         "url-loader": "4.1.0",
         "webpack": "4.43.0",
         "webpack-dev-server": "3.11.0",
@@ -93,7 +93,7 @@
         "fsevents": "2.1.3"
     },
     "peerDependencies": {
-        "typescript": "3.9.7"
+        "typescript": "4.0.3"
     },
     "peerDependenciesMeta": {
         "typescript": {