diff --git a/secretflow_serving_lib/version.py b/secretflow_serving_lib/version.py
index e088246..482974b 100644
--- a/secretflow_serving_lib/version.py
+++ b/secretflow_serving_lib/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 
 
-__version__ = "0.3.0.dev$$DATE$$"
+__version__ = "0.3.0b0"
diff --git a/version.txt b/version.txt
index e088246..482974b 100644
--- a/version.txt
+++ b/version.txt
@@ -13,4 +13,4 @@
 # limitations under the License.
 
 
-__version__ = "0.3.0.dev$$DATE$$"
+__version__ = "0.3.0b0"