diff --git a/package.json b/package.json
index 0d79734a..aec632d9 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "urltools": "^0.4.1"
   },
   "devDependencies": {
-    "autoprefixer": "^9.0.0",
+    "autoprefixer": "^10.3.1",
     "coveralls": "^3.0.0",
     "eslint": "^7.0.0",
     "eslint-config-prettier": "^8.3.0",