diff --git a/package.json b/package.json
index ec75ed5..bb1adef 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
         "@tryghost/shared-theme-assets": "1.1.0",
         "autoprefixer": "10.4.8",
         "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",