diff --git a/package.json b/package.json
index 1844c9b79..6766b6e7f 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "@typescript-eslint/eslint-plugin": "3.4.0",
     "@typescript-eslint/parser": "3.4.0",
     "bootstrap": "4.5.0",
-    "codemirror": "5.54.0",
+    "codemirror": "5.55.0",
     "eslint-config-react-app": "5.2.1",
     "eslint-config-standard": "14.1.1",
     "eslint-plugin-flowtype": "5.1.3",
diff --git a/yarn.lock b/yarn.lock
index 2f9d6a63a..0afa728cf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3266,10 +3266,10 @@ 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@5.54.0:
-  version "5.54.0"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.54.0.tgz#82b6adf662b29eeb7b867fe7839d49e25e4a0b38"
-  integrity sha512-Pgf3surv4zvw+KaW3doUU7pGjF0BPU8/sj7eglWJjzni46U/DDW8pu3nZY0QgQKUcICDXRkq8jZmq0y6KhxM3Q==
+codemirror@5.55.0:
+  version "5.55.0"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.55.0.tgz#23731f641288f202a6858fdc878f3149e0e04363"
+  integrity sha512-TumikSANlwiGkdF/Blnu/rqovZ0Y3Jh8yy9TqrPbSM0xxSucq3RgnpVDQ+mD9q6JERJEIT2FMuF/fBGfkhIR/g==
 
 collection-visit@^1.0.0:
   version "1.0.0"