diff --git a/package.json b/package.json
index a4313825a..cdd49c2c9 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "dependencies": {
     "babel-core": "6.26.0",
     "babel-preset-es2015": "6.24.1",
-    "diff-dom": "2.3.0",
+    "diff-dom": "2.3.1",
     "govuk-elements-sass": "3.1.x",
     "govuk_frontend_toolkit": "7.2.0",
     "govuk_template_jinja": "0.23.0",