diff --git a/strands-py/pyproject.toml b/strands-py/pyproject.toml
index 86995b5746..5d736cc80a 100644
--- a/strands-py/pyproject.toml
+++ b/strands-py/pyproject.toml
@@ -64,8 +64,8 @@ docs = [
 ]
 
 a2a = [
-    "a2a-sdk>=0.3.0,<0.4.0",
-    "a2a-sdk[sql]>=0.3.0,<0.4.0",
+    "a2a-sdk>=0.3.0,<1.1.0",
+    "a2a-sdk[sql]>=0.3.0,<1.1.0",
     "uvicorn>=0.34.2,<1.0.0",
     "httpx>=0.28.1,<1.0.0",
     "fastapi>=0.133.0,<1.0.0",