diff --git a/setup.py b/setup.py
index 06c6959000..e1c1f5835f 100644
--- a/setup.py
+++ b/setup.py
@@ -144,7 +144,7 @@
 ]
 
 adk_extra_require = [
-    "google-adk >= 1.0.0, < 2.0.0",
+    "google-adk >= 1.5.0, < 3.0.0",
 ]
 
 reasoning_engine_extra_require = [