diff --git a/playground/package.json b/playground/package.json
index 892bb86..f30d1a5 100644
--- a/playground/package.json
+++ b/playground/package.json
@@ -26,7 +26,7 @@
     "@babel/preset-env": "^7.8.6",
     "babel-loader": "^8.0.6",
     "css-loader": "^3.4.2",
-    "postcss": "^7.0.27",
+    "postcss": "^7.0.36",
     "postcss-loader": "^3.0.0",
     "prettier-standard": "^16.1.0",
     "style-loader": "^1.1.3",
diff --git a/playground/yarn.lock b/playground/yarn.lock
index 496558a..b75845d 100644
--- a/playground/yarn.lock
+++ b/playground/yarn.lock
@@ -5243,10 +5243,10 @@ postcss@^6.0.9:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^7.0.0, postcss@^7.0.11, postcss@^7.0.14, postcss@^7.0.16, postcss@^7.0.18, postcss@^7.0.21, postcss@^7.0.23, postcss@^7.0.26, postcss@^7.0.27, postcss@^7.0.5, postcss@^7.0.6:
-  version "7.0.27"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.27.tgz#cc67cdc6b0daa375105b7c424a85567345fc54d9"
-  integrity sha512-WuQETPMcW9Uf1/22HWUWP9lgsIC+KEHg2kozMflKjbeUtw9ujvFX6QmIfozaErDkmLWS9WEnEdEe6Uo9/BNTdQ==
+postcss@^7.0.0, postcss@^7.0.11, postcss@^7.0.14, postcss@^7.0.16, postcss@^7.0.18, postcss@^7.0.21, postcss@^7.0.23, postcss@^7.0.26, postcss@^7.0.36, postcss@^7.0.5, postcss@^7.0.6:
+  version "7.0.36"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.36.tgz#056f8cffa939662a8f5905950c07d5285644dfcb"
+  integrity sha512-BebJSIUMwJHRH0HAQoxN4u1CN86glsrwsW0q7T+/m44eXOUAxSNdHRkNZPYz5vVUbg17hFgOQDE7fZk7li3pZw==
   dependencies:
     chalk "^2.4.2"
     source-map "^0.6.1"