diff --git a/docs/package.json b/docs/package.json
index 43d206eac..275eaef23 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -17,7 +17,7 @@
     "@angular/compiler": "8.2.11",
     "@angular/core": "8.2.11",
     "codelyzer": "5.1.2",
-    "codemirror": "5.49.0",
+    "codemirror": "5.51.0",
     "rxjs": "6.5.3",
     "tslint": "5.20.0",
     "typescript": "3.7.3",