diff --git a/package.json b/package.json
index 9b77449..f73eb77 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "autoprefixer": "10.4.7",
-    "cssnano": "5.1.7",
+    "cssnano": "5.1.12",
     "del": "6.0.0",
     "gulp": "4.0.2",
     "gulp-concat": "2.6.1",