diff --git a/themes/wporg-5ftf/package.json b/themes/wporg-5ftf/package.json
index dd0a7ff..a1ac44e 100644
--- a/themes/wporg-5ftf/package.json
+++ b/themes/wporg-5ftf/package.json
@@ -26,6 +26,7 @@
     "grunt-sass": "3.1.0",
     "grunt-sass-globbing": "1.5.1",
     "node-sass": "5.0.0",
-    "pixrem": "5.0.0"
+    "pixrem": "5.0.0",
+    "postcss": "^8.4.13"
   }
 }