diff --git a/examples/LiftSim_baseline/A2C/README.md b/examples/LiftSim_baseline/A2C/README.md
index 50ec00ed1d37ba7e53ff259240e0c2b6365f10b2..235e1aff2c956fd1ec60d999e0c34328f949d80c 100644
--- a/examples/LiftSim_baseline/A2C/README.md
+++ b/examples/LiftSim_baseline/A2C/README.md
@@ -7,7 +7,7 @@
 ## 依赖库
 
 + [paddlepaddle>=1.6.1](https://github.com/PaddlePaddle/Paddle)
-+ [parl>=1.2.2](https://github.com/PaddlePaddle/PARL)
++ [parl>=1.2.3](https://github.com/PaddlePaddle/PARL)
 + [rlschool>=0.1.1][rlschool]
 
 
diff --git a/parl/__init__.py b/parl/__init__.py
index 14a7e16f751bd0f0f1ab0ee4aca927ad97b24f2a..02e7a80ab01591c81862624a8ccd9997e4f429ea 100644
--- a/parl/__init__.py
+++ b/parl/__init__.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "1.2.2"
+__version__ = "1.2.3"
 """
 generates new PARL python API
 """