diff --git a/requirements.txt b/requirements.txt
index 95e2285..7ec3082 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-google-adk==1.7.0
+google-adk==1.28.1
 google-genai==1.26.0
 google-cloud-bigquery==3.35.0
 google-auth==2.40.3