diff --git a/package.json b/package.json
index 9e1e65cd..7e000f1a 100644
--- a/package.json
+++ b/package.json
@@ -90,9 +90,9 @@
     },
     "devDependencies": {
         "@tryghost/shared-theme-assets": "2.4.3",
-        "autoprefixer": "10.4.18",
+        "autoprefixer": "10.4.19",
         "beeper": "2.1.0",
-        "cssnano": "6.1.0",
+        "cssnano": "6.1.1",
         "gscan": "4.42.0",
         "gulp": "4.0.2",
         "gulp-concat": "2.6.1",
@@ -100,7 +100,7 @@
         "gulp-postcss": "10.0.0",
         "gulp-uglify": "3.0.2",
         "gulp-zip": "5.1.0",
-        "postcss": "8.4.37",
+        "postcss": "8.4.38",
         "postcss-easy-import": "4.0.0",
         "pump": "3.0.0"
     }