diff --git a/package.json b/package.json
index 765936ee..78a003f2 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
     "babel-plugin-transform-react-jsx": "^6.24.1",
     "babel-preset-preact": "^1.1.0",
     "chart.js": "^2.8.0",
-    "codemirror": "^5.44.0",
+    "codemirror": "^5.58.2",
     "intersection-observer": "^0.5.1",
     "linkstate": "^1.1.1",
     "marked": "^0.6.1",
diff --git a/yarn.lock b/yarn.lock
index fd028ffe..d3c1c9fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2883,10 +2883,10 @@ 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@^5.44.0:
-  version "5.44.0"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.44.0.tgz#80dc2a231eeb7aab25ec2405cdca37e693ccf9cc"
-  integrity sha512-3l42syTNakCdCQuYeZJXTyxina6Y9i4V0ighSJXNCQtRbaCN76smKKLu1ZHPHQon3rnzC7l4i/0r4gp809K1wg==
+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"