diff --git a/packages/angular_devkit/build_webpack/package.json b/packages/angular_devkit/build_webpack/package.json
index 742781f52b80..e0007594ee1a 100644
--- a/packages/angular_devkit/build_webpack/package.json
+++ b/packages/angular_devkit/build_webpack/package.json
@@ -12,7 +12,7 @@
     "rxjs": "6.6.3"
   },
   "peerDependencies": {
-    "webpack": "^4.6.0",
+    "webpack": "^4.6.0 || ^5.0.0-rc.0",
     "webpack-dev-server": "^3.1.4"
   }
 }
diff --git a/packages/ngtools/webpack/package.json b/packages/ngtools/webpack/package.json
index 5c968a986525..eb62d543e6d2 100644
--- a/packages/ngtools/webpack/package.json
+++ b/packages/ngtools/webpack/package.json
@@ -28,7 +28,7 @@
   "peerDependencies": {
     "@angular/compiler-cli": "^11.0.0 || ^11.0.0-next",
     "typescript": ">=3.9 < 4.1",
-    "webpack": "^4.0.0"
+    "webpack": "^4.0.0 || ^5.0.0-rc.0"
   },
   "devDependencies": {
     "@angular/compiler": "11.0.0-next.2",