diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a07078cd..0ef60b72a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,11 +3,13 @@
 ## Unreleased
 ### Added
 ### Fixed
-- check for NULL pointers when creating Solution objects (will return None): [#494](https://github.com/scipopt/PySCIPOpt/pull/494)
-
 ### Changed
 ### Removed
 
+## 3.1.3 - 2021-04-23
+### Fixed
+- check for NULL pointers when creating Solution objects (will return None): [#494](https://github.com/scipopt/PySCIPOpt/pull/494)
+
 ## 3.1.2 - 2021-04-07
 ### Added
 - add `Model.getNReaders` that returns the number of available readers
diff --git a/src/pyscipopt/__init__.py b/src/pyscipopt/__init__.py
index b2409954d..fd675c9ba 100644
--- a/src/pyscipopt/__init__.py
+++ b/src/pyscipopt/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '3.1.2'
+__version__ = '3.1.3'
 
 # required for Python 3.8 on Windows
 import os