diff --git a/packages/socket-mode/package.json b/packages/socket-mode/package.json
index 068d2cb3a..077f27834 100644
--- a/packages/socket-mode/package.json
+++ b/packages/socket-mode/package.json
@@ -64,7 +64,7 @@
     "@types/proxyquire": "^1.3.31",
     "@types/sinon": "^21",
     "c8": "^10.1.2",
-    "chai": "^4",
+    "chai": "^6",
     "mocha": "^11",
     "mocha-junit-reporter": "^2.2.1",
     "mocha-multi-reporters": "^1.5.1",