diff --git a/packages/angular_devkit/build_angular/package.json b/packages/angular_devkit/build_angular/package.json
index 002e6f092b..b6b5c88d89 100644
--- a/packages/angular_devkit/build_angular/package.json
+++ b/packages/angular_devkit/build_angular/package.json
@@ -20,7 +20,7 @@
     "@jsdevtools/coverage-istanbul-loader": "3.0.3",
     "@ngtools/webpack": "0.0.0",
     "ajv": "6.12.3",
-    "autoprefixer": "9.8.4",
+    "autoprefixer": "9.8.5",
     "babel-loader": "8.1.0",
     "browserslist": "^4.9.1",
     "cacache": "15.0.5",
diff --git a/yarn.lock b/yarn.lock
index 33e70414f6..bc563946d0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3195,13 +3195,13 @@ autoprefixer@9.7.6, autoprefixer@^9.6.5:
     postcss "^7.0.27"
     postcss-value-parser "^4.0.3"
 
-autoprefixer@9.8.4:
-  version "9.8.4"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.8.4.tgz#736f1012673a70fa3464671d78d41abd54512863"
-  integrity sha512-84aYfXlpUe45lvmS+HoAWKCkirI/sw4JK0/bTeeqgHYco3dcsOn0NqdejISjptsYwNji/21dnkDri9PsYKk89A==
+autoprefixer@9.8.5:
+  version "9.8.5"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.8.5.tgz#2c225de229ddafe1d1424c02791d0c3e10ccccaa"
+  integrity sha512-C2p5KkumJlsTHoNv9w31NrBRgXhf6eCMteJuHZi2xhkgC+5Vm40MEtCKPhc0qdgAOhox0YPy1SQHTAky05UoKg==
   dependencies:
     browserslist "^4.12.0"
-    caniuse-lite "^1.0.30001087"
+    caniuse-lite "^1.0.30001097"
     colorette "^1.2.0"
     normalize-range "^0.1.2"
     num2fraction "^1.2.2"
@@ -3896,10 +3896,10 @@ caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001030, caniuse-lite@^1.0.30001032, can
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001055.tgz#7b52c3537f7a8c0408aca867e83d2b04268b54cd"
   integrity sha512-MbwsBmKrBSKIWldfdIagO5OJWZclpJtS4h0Jrk/4HFrXJxTdVdH23Fd+xCiHriVGvYcWyW8mR/CPsYajlH8Iuw==
 
-caniuse-lite@^1.0.30001087:
-  version "1.0.30001088"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001088.tgz#23a6b9e192106107458528858f2c0e0dba0d9073"
-  integrity sha512-6eYUrlShRYveyqKG58HcyOfPgh3zb2xqs7NvT2VVtP3hEUeeWvc3lqhpeMTxYWBBeeaT9A4bKsrtjATm66BTHg==
+caniuse-lite@^1.0.30001097:
+  version "1.0.30001097"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001097.tgz#1129c40c9f5ee3282158da08fd915d301f4a9bd8"
+  integrity sha512-TeuSleKt/vWXaPkLVFqGDnbweYfq4IaZ6rUugFf3rWY6dlII8StUZ8Ddin0PkADfgYZ4wRqCdO2ORl4Rn5eZIA==
 
 canonical-path@1.0.0:
   version "1.0.0"