diff --git a/ai/slackbot-mcp-client/rich-responses/mcp-apps/requirements.txt b/ai/slackbot-mcp-client/rich-responses/mcp-apps/requirements.txt
index 20bccb0..57a879e 100644
--- a/ai/slackbot-mcp-client/rich-responses/mcp-apps/requirements.txt
+++ b/ai/slackbot-mcp-client/rich-responses/mcp-apps/requirements.txt
@@ -1,6 +1,6 @@
 httpx2==2.13.1
 mcp==2.2.0
-mypy==2.3.1
+mypy==2.4.0
 pytest==9.1.1
 ruff==0.16.9
 slack_bolt==1.30.0