diff --git a/imperative/python/version_template.py b/imperative/python/version_template.py
index e5d40075..0067a7e7 100644
--- a/imperative/python/version_template.py
+++ b/imperative/python/version_template.py
@@ -6,5 +6,5 @@
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
 # "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-__version__ = "1.6.0.dev"
+__version__ = "1.5.0"
 
diff --git a/src/core/include/megbrain/version.h b/src/core/include/megbrain/version.h
index c8f84c64..b246f043 100644
--- a/src/core/include/megbrain/version.h
+++ b/src/core/include/megbrain/version.h
@@ -12,7 +12,7 @@
 #pragma once
 
 #define MGB_MAJOR   8
-#define MGB_MINOR   9999
+#define MGB_MINOR   12
 #define MGB_PATCH   0
 //! whether it is development version
 #ifndef MGB_IS_DEV