diff --git a/.changeset/thirty-cows-wait.md b/.changeset/thirty-cows-wait.md
new file mode 100644
index 0000000000..bf91e0870a
--- /dev/null
+++ b/.changeset/thirty-cows-wait.md
@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Lock down the version of webpack-dev-server as it's causing some nasty bugs someplace
diff --git a/packages/cli/package.json b/packages/cli/package.json
index a61698ba3b..e89cc3d5eb 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -109,7 +109,7 @@
     "typescript": "^4.0.3",
     "url-loader": "^4.1.0",
     "webpack": "^4.41.6",
-    "webpack-dev-server": "^3.11.0",
+    "webpack-dev-server": "3.11.0",
     "webpack-node-externals": "^2.5.0",
     "yaml": "^1.10.0",
     "yml-loader": "^2.1.0",
@@ -137,7 +137,7 @@
     "@types/rollup-plugin-postcss": "^2.0.0",
     "@types/tar": "^4.0.3",
     "@types/webpack": "^4.41.7",
-    "@types/webpack-dev-server": "^3.11.0",
+    "@types/webpack-dev-server": "3.11.0",
     "@types/yarnpkg__lockfile": "^1.1.4",
     "del": "^5.1.0",
     "mock-fs": "^4.13.0",