diff --git a/ai/slackbot-mcp-client/no-auth/requirements.txt b/ai/slackbot-mcp-client/no-auth/requirements.txt
index 221c40b..76d57c0 100644
--- a/ai/slackbot-mcp-client/no-auth/requirements.txt
+++ b/ai/slackbot-mcp-client/no-auth/requirements.txt
@@ -1,6 +1,6 @@
 httpx2==2.5.0
 mcp==1.28.1
-mypy==2.1.0
+mypy==2.2.0
 pytest==9.1.1
 ruff==0.15.20
 slack_bolt==1.29.0