diff --git a/pyoptsparse/__init__.py b/pyoptsparse/__init__.py
index e6f38cf4..cda0d100 100644
--- a/pyoptsparse/__init__.py
+++ b/pyoptsparse/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "2.13.0"
+__version__ = "2.13.1"
 
 from .pyOpt_history import History
 from .pyOpt_variable import Variable