diff --git a/package.json b/package.json
index f49e0c15..a8faa39a 100644
--- a/package.json
+++ b/package.json
@@ -84,9 +84,9 @@
     },
     "devDependencies": {
         "@tryghost/shared-theme-assets": "1.2.0",
-        "autoprefixer": "10.4.8",
+        "autoprefixer": "10.4.9",
         "beeper": "2.1.0",
-        "cssnano": "5.1.12",
+        "cssnano": "5.1.13",
         "gscan": "4.34.0",
         "gulp": "4.0.2",
         "gulp-concat": "2.6.1",