diff --git a/lib/core/package.json b/lib/core/package.json
index b67e185555d1..44f8720a7676 100644
--- a/lib/core/package.json
+++ b/lib/core/package.json
@@ -31,7 +31,7 @@
     "@storybook/theming": "5.0.0-alpha.9",
     "@storybook/ui": "5.0.0-alpha.9",
     "airbnb-js-shims": "^1 || ^2",
-    "autoprefixer": "^9.4.5",
+    "autoprefixer": "^9.4.6",
     "babel-plugin-emotion": "^10.0.5",
     "babel-plugin-macros": "^2.4.5",
     "babel-preset-minify": "^0.5.0 || 0.6.0-alpha.5",
diff --git a/yarn.lock b/yarn.lock
index 4c67d40ae229..abab70d64698 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3209,15 +3209,15 @@ autoprefixer@9.3.1:
     postcss "^7.0.5"
     postcss-value-parser "^3.3.1"
 
-autoprefixer@^9.3.1, autoprefixer@^9.4.5:
-  version "9.4.5"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.4.5.tgz#a13ccb001e4bc8837f71c3354005b42f02cc03d7"
+autoprefixer@^9.3.1, autoprefixer@^9.4.6:
+  version "9.4.6"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.4.6.tgz#0ace275e33b37de16b09a5547dbfe73a98c1d446"
   dependencies:
-    browserslist "^4.4.0"
-    caniuse-lite "^1.0.30000928"
+    browserslist "^4.4.1"
+    caniuse-lite "^1.0.30000929"
     normalize-range "^0.1.2"
     num2fraction "^1.2.2"
-    postcss "^7.0.11"
+    postcss "^7.0.13"
     postcss-value-parser "^3.3.1"
 
 aws-sign2@~0.7.0:
@@ -5259,12 +5259,12 @@ browserslist@^3.2.6:
     caniuse-lite "^1.0.30000844"
     electron-to-chromium "^1.3.47"
 
-browserslist@^4.0.0, browserslist@^4.1.0, browserslist@^4.3.3, browserslist@^4.3.4, browserslist@^4.4.0:
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.4.0.tgz#7050d1412cbfc5274aba609ed5e50359ca1a5fdf"
+browserslist@^4.0.0, browserslist@^4.1.0, browserslist@^4.3.3, browserslist@^4.3.4, browserslist@^4.4.1:
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.4.1.tgz#42e828954b6b29a7a53e352277be429478a69062"
   dependencies:
-    caniuse-lite "^1.0.30000928"
-    electron-to-chromium "^1.3.100"
+    caniuse-lite "^1.0.30000929"
+    electron-to-chromium "^1.3.103"
     node-releases "^1.1.3"
 
 browserstack@^1.5.1:
@@ -5531,9 +5531,9 @@ caniuse-api@^3.0.0:
     lodash.memoize "^4.1.2"
     lodash.uniq "^4.5.0"
 
-caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000844, caniuse-lite@^1.0.30000884, caniuse-lite@^1.0.30000898, caniuse-lite@^1.0.30000905, caniuse-lite@^1.0.30000928:
-  version "1.0.30000929"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000929.tgz#7b391b781a9c3097ecc39ea053301aea8ea16317"
+caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000844, caniuse-lite@^1.0.30000884, caniuse-lite@^1.0.30000898, caniuse-lite@^1.0.30000905, caniuse-lite@^1.0.30000929:
+  version "1.0.30000930"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000930.tgz#c238bab82bedb462bcbdc61d0334932dcc084d8a"
 
 canonical-path@1.0.0:
   version "1.0.0"
@@ -7510,7 +7510,11 @@ ejs@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.6.1.tgz#498ec0d495655abc6f23cd61868d926464071aa0"
 
-electron-to-chromium@^1.3.100, electron-to-chromium@^1.3.47, electron-to-chromium@^1.3.62:
+electron-to-chromium@^1.3.103:
+  version "1.3.106"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.106.tgz#672183160e783cb546cff83d9a98d5f69cd91874"
+
+electron-to-chromium@^1.3.47, electron-to-chromium@^1.3.62:
   version "1.3.103"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.103.tgz#a695777efdbc419cad6cbb0e58458251302cd52f"
 
@@ -16304,9 +16308,9 @@ postcss@^6.0.1, postcss@^6.0.23, postcss@^6.0.9:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.11, postcss@^7.0.2, postcss@^7.0.5, postcss@^7.0.6, postcss@^7.0.7:
-  version "7.0.13"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.13.tgz#42bf716413e8f1c786ab71dc6e722b3671b16708"
+postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.13, postcss@^7.0.2, postcss@^7.0.5, postcss@^7.0.6, postcss@^7.0.7:
+  version "7.0.14"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.14.tgz#4527ed6b1ca0d82c53ce5ec1a2041c2346bbd6e5"
   dependencies:
     chalk "^2.4.2"
     source-map "^0.6.1"