diff --git a/package-lock.json b/package-lock.json
index d57ff6b6..7b0cc370 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -176,9 +176,9 @@
       }
     },
     "codemirror": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.1.0.tgz",
-      "integrity": "sha1-7H5i7gI4QxZhqFIyUTfDP1iu5e0="
+      "version": "5.58.2",
+      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.58.2.tgz",
+      "integrity": "sha512-K/hOh24cCwRutd1Mk3uLtjWzNISOkm4fvXiMO7LucCrqbh6aJDdtqUziim3MZUI6wOY0rvY1SlL1Ork01uMy6w=="
     },
     "color-convert": {
       "version": "1.9.3",
diff --git a/package.json b/package.json
index 3e9e02fa..74c624e6 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "acorn": "7.2.0",
     "argparse": "0.1.6",
-    "codemirror": "5.1.0",
+    "codemirror": "5.58.2",
     "cover": "0.2.9",
     "datatables": "1.10.6",
     "esotope": "1.4.5",