diff --git a/packages/angular_devkit/build_angular/package.json b/packages/angular_devkit/build_angular/package.json
index 952558d4ac..63d9cd8884 100644
--- a/packages/angular_devkit/build_angular/package.json
+++ b/packages/angular_devkit/build_angular/package.json
@@ -49,7 +49,7 @@
     "tree-kill": "1.2.1",
     "terser-webpack-plugin": "1.2.3",
     "webpack": "4.31.0",
-    "webpack-dev-middleware": "3.6.2",
+    "webpack-dev-middleware": "3.7.0",
     "webpack-dev-server": "3.3.1",
     "webpack-merge": "4.2.1",
     "webpack-sources": "1.3.0",
diff --git a/yarn.lock b/yarn.lock
index 5f0a9c3a40..9db8f87e64 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6149,6 +6149,11 @@ mime@^2.3.1:
   resolved "https://registry.yarnpkg.com/mime/-/mime-2.3.1.tgz#b1621c54d63b97c47d3cfe7f7215f7d64517c369"
   integrity sha512-OEUllcVoydBHGN1z84yfQDimn58pZNNNXgZlHXSboxMlFvgI6MXSWpWKpFRra7H1HxpVhHTkrghfRW49k6yjeg==
 
+mime@^2.4.2:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-2.4.2.tgz#ce5229a5e99ffc313abac806b482c10e7ba6ac78"
+  integrity sha512-zJBfZDkwRu+j3Pdd2aHsR5GfH2jIWhmL1ZzBoc+X+3JEti2hbArWcyJ+1laC1D2/U/W1a/+Cegj0/OnEU2ybjg==
+
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
@@ -7659,6 +7664,11 @@ range-parser@^1.0.3, range-parser@^1.2.0, range-parser@~1.2.0:
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
   integrity sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=
 
+range-parser@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
+  integrity sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==
+
 raw-body@2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
@@ -9887,7 +9897,17 @@ webpack-dev-middleware@3.4.0:
     range-parser "^1.0.3"
     webpack-log "^2.0.0"
 
-webpack-dev-middleware@3.6.2, webpack-dev-middleware@^3.6.2:
+webpack-dev-middleware@3.7.0:
+  version "3.7.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.7.0.tgz#ef751d25f4e9a5c8a35da600c5fda3582b5c6cff"
+  integrity sha512-qvDesR1QZRIAZHOE3iQ4CXLZZSQ1lAUsSpnQmlB1PBfoN/xdRjmge3Dok0W4IdaVLJOGJy3sGI4sZHwjRU0PCA==
+  dependencies:
+    memory-fs "^0.4.1"
+    mime "^2.4.2"
+    range-parser "^1.2.1"
+    webpack-log "^2.0.0"
+
+webpack-dev-middleware@^3.6.2:
   version "3.6.2"
   resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.6.2.tgz#f37a27ad7c09cd7dc67cd97655413abaa1f55942"
   integrity sha512-A47I5SX60IkHrMmZUlB0ZKSWi29TZTcPz7cha1Z75yYOsgWh/1AcPmQEbC8ZIbU3A1ytSv1PMU0PyPz2Lmz2jg==