diff --git a/package.json b/package.json
index a676e615..89db6f05 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "babel-jest": "23.6.0",
     "babel-loader": "8.2.2",
     "babel-plugin-version-inline": "1.0.0",
-    "codemirror": "5.59.1",
+    "codemirror": "5.65.9",
     "css-loader": "3.6.0",
     "css-minimizer-webpack-plugin": "1.1.5",
     "eslint": "7.17.0",
diff --git a/yarn.lock b/yarn.lock
index 84829a88..72f546a0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3222,10 +3222,10 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codemirror@5.59.1:
-  version "5.59.1"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.59.1.tgz#cd6465555a87f8a2243eb41ffb460c777e15212c"
-  integrity sha512-d0SSW/PCCD4LoSCBPdnP0BzmZB1v3emomCUtVlIWgZHJ06yVeBOvBtOH7vYz707pfAvEeWbO9aP6akh8vl1V3w==
+codemirror@5.65.9:
+  version "5.65.9"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.65.9.tgz#ec70c92aa206ee4c9853d5f1e7c4ed356cdab68c"
+  integrity sha512-19Jox5sAKpusTDgqgKB5dawPpQcY+ipQK7xoEI+MVucEF9qqFaXpeqY1KaoyGBso/wHQoDa4HMMxMjdsS3Zzzw==
 
 collect-v8-coverage@^1.0.0:
   version "1.0.1"