diff --git a/packages/web-api/package.json b/packages/web-api/package.json
index a4bcb53af..d99c9dc97 100644
--- a/packages/web-api/package.json
+++ b/packages/web-api/package.json
@@ -70,7 +70,7 @@
     "@types/sinon": "^17",
     "busboy": "^1",
     "c8": "^10.1.2",
-    "chai": "^4",
+    "chai": "^6",
     "mocha": "^11",
     "mocha-junit-reporter": "^2.2.1",
     "mocha-multi-reporters": "^1.5.1",