diff --git a/pyproject.toml b/pyproject.toml
index a09bc4a6..036897ad 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "veadk-python"
-version = "0.5.2"
+version = "0.5.3"
 description = "Volcengine agent development kit, integrations with Volcengine cloud services."
 readme = "README.md"
 requires-python = ">=3.10"
@@ -13,7 +13,7 @@ authors = [
 ]
 dependencies = [
     "pydantic-settings==2.10.1", # Config management
-    "a2a-sdk==0.3.7", # For Google Agent2Agent protocol
+    "a2a-sdk>=0.3.7", # For Google Agent2Agent protocol
     "deprecated==1.2.18",
     "google-adk>=1.19.0", # For basic agent architecture
     "litellm>=1.74.3", # For model inference
diff --git a/veadk/version.py b/veadk/version.py
index be643403..0f88aa01 100644
--- a/veadk/version.py
+++ b/veadk/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-VERSION = "0.5.2"
+VERSION = "0.5.3"