diff --git a/reference/package.json b/reference/package.json
index 246a7456..1ccd39dc 100644
--- a/reference/package.json
+++ b/reference/package.json
@@ -90,7 +90,7 @@
   },
   "dependencies": {
     "classnames": "^2.2.5",
-    "codemirror": "^5.34.0",
+    "codemirror": "^5.58.2",
     "core-js": "^2.5.3",
     "js-beautify": "^1.7.5",
     "lodash": "^4.17.4",
diff --git a/reference/yarn.lock b/reference/yarn.lock
index dfd3e4f3..911d014a 100644
--- a/reference/yarn.lock
+++ b/reference/yarn.lock
@@ -1689,9 +1689,9 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codemirror@^5.34.0:
-  version "5.34.0"
-  resolved "https://registry.npmjs.org/codemirror/-/codemirror-5.34.0.tgz#e345dcc09a6149db65cc70dff9d389c1c4b0cd06"
+codemirror@^5.58.2:
+  version "5.58.2"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.58.2.tgz#ed54a1796de1498688bea1cdd4e9eeb187565d1b"
 
 collection-visit@^1.0.0:
   version "1.0.0"