diff --git a/examples/polymer-cli/package.json b/examples/polymer-cli/package.json
index 243741ed8c7..932039f51f2 100644
--- a/examples/polymer-cli/package.json
+++ b/examples/polymer-cli/package.json
@@ -26,6 +26,6 @@
     "babel-preset-stage-2": "^6.24.1",
     "copy-webpack-plugin": "^4.2.0",
     "html-webpack-plugin": "^2.30.1",
-    "webpack-dev-server": "^2.9.4"
+    "webpack-dev-server": "^2.11.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index fa6236bc96c..3e74a7b7cb4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15089,7 +15089,7 @@ webpack-dev-server@2.9.4:
     webpack-dev-middleware "^1.11.0"
     yargs "^6.6.0"
 
-webpack-dev-server@^2.10.1, webpack-dev-server@^2.9.4:
+webpack-dev-server@^2.10.1:
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-2.10.1.tgz#a9768375346e62155860fe3cef3d4d641b24273e"
   dependencies:
@@ -15121,6 +15121,38 @@ webpack-dev-server@^2.10.1, webpack-dev-server@^2.9.4:
     webpack-dev-middleware "1.12.2"
     yargs "6.6.0"
 
+webpack-dev-server@^2.11.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-2.11.0.tgz#e9d4830ab7eb16c6f92ed68b92f6089027960e1b"
+  dependencies:
+    ansi-html "0.0.7"
+    array-includes "^3.0.3"
+    bonjour "^3.5.0"
+    chokidar "^2.0.0"
+    compression "^1.5.2"
+    connect-history-api-fallback "^1.3.0"
+    debug "^3.1.0"
+    del "^3.0.0"
+    express "^4.16.2"
+    html-entities "^1.2.0"
+    http-proxy-middleware "~0.17.4"
+    import-local "^1.0.0"
+    internal-ip "1.2.0"
+    ip "^1.1.5"
+    killable "^1.0.0"
+    loglevel "^1.4.1"
+    opn "^5.1.0"
+    portfinder "^1.0.9"
+    selfsigned "^1.9.1"
+    serve-index "^1.7.2"
+    sockjs "0.3.19"
+    sockjs-client "1.1.4"
+    spdy "^3.4.1"
+    strip-ansi "^4.0.0"
+    supports-color "^5.1.0"
+    webpack-dev-middleware "1.12.2"
+    yargs "6.6.0"
+
 webpack-dev-server@~2.9.3:
   version "2.9.7"
   resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-2.9.7.tgz#100ad6a14775478924d417ca6dcfb9d52a98faed"