diff --git a/package.json b/package.json
index 9a41dda..59c2c0f 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "chalk": "^2.4.1",
     "compression": "^1.7.3",
     "core-js": "^3.0.0",
-    "cssnano": "^4.1.0",
+    "cssnano": "^5.0.0",
     "del": "^4.0.0",
     "execa": "^1.0.0",
     "find-up": "^4.0.0",