diff --git a/package.json b/package.json
index 84c7c9f..076069d 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "webpack-cli": "^3.3.2"
   },
   "dependencies": {
-    "codemirror": "^5.26.0",
+    "codemirror": "^5.58.2",
     "escape-html": "^1.0.3"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 9292587..8a34e0b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -862,10 +862,10 @@ code-point-at@^1.0.0:
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
   integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
 
-codemirror@^5.26.0:
-  version "5.49.2"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.49.2.tgz#c84fdaf11b19803f828b0c67060c7bc6d154ccad"
-  integrity sha512-dwJ2HRPHm8w51WB5YTF9J7m6Z5dtkqbU9ntMZ1dqXyFB9IpjoUFDj80ahRVEoVanfIp6pfASJbOlbWdEf8FOzQ==
+codemirror@^5.58.2:
+  version "5.58.2"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.58.2.tgz#ed54a1796de1498688bea1cdd4e9eeb187565d1b"
+  integrity sha512-K/hOh24cCwRutd1Mk3uLtjWzNISOkm4fvXiMO7LucCrqbh6aJDdtqUziim3MZUI6wOY0rvY1SlL1Ork01uMy6w==
 
 collection-visit@^1.0.0:
   version "1.0.0"