diff --git a/package.json b/package.json
index 35506a8c..2dcb3bc3 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "bootstrap5": "npm:bootstrap@^5.3.2",
     "broken-link-checker": "^0.7.8",
     "chai": "^4.3.10",
-    "cssnano": "^6.0.0",
+    "cssnano": "^7.0.5",
     "grunt": "^1.6.1",
     "grunt-cli": "^1.3.2",
     "grunt-contrib-clean": "^2.0.1",