diff --git a/package.json b/package.json
index 43be11d..7ff27f6 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   "author": "West Midlands Fire Service",
   "license": "MIT",
   "devDependencies": {
-    "chai": "4.5.0",
+    "chai": "6.2.2",
     "codecov": "3.8.3",
     "conventional-changelog-conventionalcommits": "8.0.0",
     "cz-conventional-changelog": "3.3.0",