diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6bda534..244c8e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Semantic Versioning Changelog
 
+## [1.31.2](https://github.com/casbin/pycasbin/compare/v1.31.1...v1.31.2) (2023-10-06)
+
+
+### Bug Fixes
+
+* use pre defined member ([#325](https://github.com/casbin/pycasbin/issues/325)) ([4f191f0](https://github.com/casbin/pycasbin/commit/4f191f09a48a61b597fb73b62a841a69407dd292))
+
 ## [1.31.1](https://github.com/casbin/pycasbin/compare/v1.31.0...v1.31.1) (2023-09-30)
 
 
diff --git a/setup.cfg b/setup.cfg
index ae767f3..5a2a1bb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,3 +1,3 @@
 [metadata]
-version = 1.31.1
+version = 1.31.2