diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index b3f9627..c372e9a
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "grunt-sass": "^3.1.0",
     "grunt-shell": "^3.0.1",
     "grunt-terser": "^1.0.0",
-    "imagemin": "^7.0.1",
+    "imagemin": "^8.0.1",
     "optipng-bin": "^6.0.0",
     "sass": "^1.44.0",
     "vinyl-fs": "^3.0.3"