diff --git a/config/config_C3.yaml b/config/config_C3.yaml
index 06d59f5b1abb66a8c1669477e6996ec482f17e42..023fa66554a5c916c972c476ed2d51027e394942 100644
--- a/config/config_C3.yaml
+++ b/config/config_C3.yaml
@@ -2,7 +2,7 @@
 ###############################################
 #
 #  Configuration file for CSST simulation
-#  CSST-Sim Group, 2021/10/07, version 0.3
+#  CSST-Sim Group, 2021/10/07
 #
 ###############################################
 
diff --git a/config/config_NGP.yaml b/config/config_NGP.yaml
index 939318be8bd35ff42b3929150b9b928f7666e0bd..e799a4a032ae0262275ee5be2a374f0a8fbafd6a 100644
--- a/config/config_NGP.yaml
+++ b/config/config_NGP.yaml
@@ -2,7 +2,7 @@
 ###############################################
 #
 #  Configuration file for CSST simulation
-#  CSST-Sim Group, 2021/10/07, version 0.3
+#  CSST-Sim Group, 2021/10/07
 #
 ###############################################
 
diff --git a/config/config_example.yaml b/config/config_example.yaml
index ba827b3fda55df721d24f3e8d063b77b77fd87aa..1e64223f86c7b3c132572da409b75555c5267571 100644
--- a/config/config_example.yaml
+++ b/config/config_example.yaml
@@ -2,7 +2,7 @@
 ###############################################
 #
 #  Configuration file for CSST simulation
-#  CSST-Sim Group, 2021/10/07, version 0.3
+#  CSST-Sim Group, 2021/10/07
 #
 ###############################################
 
diff --git a/setup.py b/setup.py
index 4f362a7cb5980c086fce2ff617f8366ab89c9611..31e02b327bf844e07d6ab50bedb8fa443ec67b63 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@ extensions = [
 
 
 setup(name='CSSTSim', 
-    version='0.5', 
+    version='0.5.1', 
     packages=find_packages(),
     # install_requires=[
     #     'numpy>=1.18.5',