diff --git a/package.json b/package.json
index f521894..76a2d9f 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "luxon": "^1.17.2",
     "npm-watch": "^0.6.0",
     "pa11y-ci": "^2.3.0",
-    "postcss": "^7.0.17",
+    "postcss": "^7.0.36",
     "postcss-amp": "^1.4.0",
     "postcss-amp-custom": "^1.1.3",
     "postcss-each": "^0.10.0",
diff --git a/yarn.lock b/yarn.lock
index 94b9971..ef1e3e7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5892,10 +5892,10 @@ postcss@^6.0.1, postcss@^6.0.9:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.13, postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2, postcss@^7.0.5, postcss@^7.0.7:
-  version "7.0.18"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.18.tgz#4b9cda95ae6c069c67a4d933029eddd4838ac233"
-  integrity sha512-/7g1QXXgegpF+9GJj4iN7ChGF40sYuGYJ8WZu8DZWnmhQ/G36hfdk3q9LBJmoK+lZ+yzZ5KYpOoxq7LF1BxE8g==
+postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.13, postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2, postcss@^7.0.36, postcss@^7.0.5, postcss@^7.0.7:
+  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"