diff --git a/package-lock.json b/package-lock.json
index a936fed..7945648 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1396,9 +1396,9 @@
       "dev": true
     },
     "codemirror": {
-      "version": "5.49.0",
-      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.49.0.tgz",
-      "integrity": "sha512-Hyzr0HToBdZpLBN9dYFO/KlJAsKH37/cXVHPAqa+imml0R92tb9AkmsvjnXL+SluEvjjdfkDgRjc65NG5jnMYA=="
+      "version": "5.58.2",
+      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.58.2.tgz",
+      "integrity": "sha512-K/hOh24cCwRutd1Mk3uLtjWzNISOkm4fvXiMO7LucCrqbh6aJDdtqUziim3MZUI6wOY0rvY1SlL1Ork01uMy6w=="
     },
     "collection-visit": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index 55b3a5f..f64505b 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "Twug fiddle - A demo of Twug - Twig built for JavaScript with Uniter",
   "license": "MIT",
   "dependencies": {
-    "codemirror": "^5.49.0",
+    "codemirror": "^5.58.2",
     "react": "^16.10.2",
     "react-codemirror2": "^6.0.0",
     "react-dom": "^16.10.2",