diff --git a/packages/@opticss/simple-template/package.json b/packages/@opticss/simple-template/package.json
index 808386e..75d6168 100644
--- a/packages/@opticss/simple-template/package.json
+++ b/packages/@opticss/simple-template/package.json
@@ -45,7 +45,7 @@
     "@types/random-js": "^1.0.30",
     "parse5": "^5.0.0",
     "parse5-sax-parser": "^5.0.0",
-    "postcss": "^7.0.14",
+    "postcss": "^8.2.13",
     "random-js": "^2.0.0",
     "specificity": "^0.4.1"
   },