diff --git a/package.json b/package.json
index 9bfbc29eb..665645b33 100644
--- a/package.json
+++ b/package.json
@@ -126,7 +126,7 @@
     "@babel/core": "7.26.0",
     "@babel/preset-env": "7.26.0",
     "@pact-foundation/pact-js-prettier-config": "1.0.0",
-    "@types/chai": "4.3.20",
+    "@types/chai": "5.0.1",
     "@types/chai-as-promised": "8.0.1",
     "@types/http-proxy": "1.17.15",
     "@types/lodash": "4.17.13",
@@ -140,7 +140,7 @@
     "@types/tough-cookie": "4.0.5",
     "@typescript-eslint/eslint-plugin": "5.62.0",
     "@typescript-eslint/parser": "5.62.0",
-    "chai": "4.5.0",
+    "chai": "5.1.2",
     "chai-as-promised": "8.0.1",
     "commit-and-tag-version": "12.5.0",
     "copyfiles": "2.4.1",