diff --git a/packages/angular_devkit/build_angular/package.json b/packages/angular_devkit/build_angular/package.json
index e1b54fe2d60c..b0ae662fc03a 100644
--- a/packages/angular_devkit/build_angular/package.json
+++ b/packages/angular_devkit/build_angular/package.json
@@ -30,7 +30,7 @@
     "core-js": "3.8.0",
     "critters": "0.0.6",
     "css-loader": "5.0.1",
-    "cssnano": "4.1.10",
+    "cssnano": "5.0.0",
     "file-loader": "6.2.0",
     "find-cache-dir": "3.3.1",
     "glob": "7.1.6",