diff --git a/mellon/__init__.py b/mellon/__init__.py
index 84bb159..145afa5 100644
--- a/mellon/__init__.py
+++ b/mellon/__init__.py
@@ -17,7 +17,7 @@
 from . import _conditional as conditional
 from . import _derivatives as derivatives
 
-__version__ = "1.3.0"
+__version__ = "1.3.1"
 
 __all__ = [
     "DensityEstimator",