diff --git a/package.json b/package.json
index 163be9a..8bdb921 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "bluebird": "~3.1.1",
     "boom": "~3.1.1",
     "bootstrap": "^3.3.6",
-    "codemirror": "~5.11.0",
+    "codemirror": "~5.15.0",
     "exports-loader": "~0.6.2",
     "expose-loader": "~0.7.0",
     "good": "~6.4.0",