diff --git a/02-use-cases/A2A-multi-agent-incident-response/host_adk_agent/requirements.txt b/02-use-cases/A2A-multi-agent-incident-response/host_adk_agent/requirements.txt
index 0e6eabf71..81df76ed5 100644
--- a/02-use-cases/A2A-multi-agent-incident-response/host_adk_agent/requirements.txt
+++ b/02-use-cases/A2A-multi-agent-incident-response/host_adk_agent/requirements.txt
@@ -8,7 +8,7 @@ absolufy-imports==0.3.1
     # via google-adk
 aiohappyeyeballs==2.6.1
     # via aiohttp
-aiohttp==3.13.0
+aiohttp==3.13.4
     # via litellm
 aiosignal==1.4.0
     # via aiohttp