diff --git a/package-lock.json b/package-lock.json
index cb907e8..7715330 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3419,9 +3419,9 @@
       }
     },
     "coffeescript": {
-      "version": "2.3.2",
-      "resolved": "https://registry.npmjs.org/coffeescript/-/coffeescript-2.3.2.tgz",
-      "integrity": "sha512-YObiFDoukx7qPBi/K0kUKyntEZDfBQiqs/DbrR1xzASKOBjGT7auD85/DiPeRr9k++lRj7l3uA9TNMLfyfcD/Q==",
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/coffeescript/-/coffeescript-2.5.1.tgz",
+      "integrity": "sha512-J2jRPX0eeFh5VKyVnoLrfVFgLZtnnmp96WQSLAS8OrLm2wtQLcnikYKe1gViJKDH7vucjuhHvBKKBP3rKcD1tQ==",
       "dev": true
     },
     "collection-visit": {
diff --git a/package.json b/package.json
index 22bdbec..bda1238 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "axios": "0.18.1",
     "chai": "4.2.0",
     "coffee-loader": "0.9.0",
-    "coffeescript": "2.3.2",
+    "coffeescript": "2.5.1",
     "stylus": "0.54.5",
     "stylus-loader": "3.0.2",
     "sugarss": "2.0.0",