diff --git a/pyproject.toml b/pyproject.toml
index 2209fee..4963708 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,3 +37,6 @@ first_value = "1"
 
 [[tool.bumpversion.files]]
 filename = "splipy/__init__.py"
+
+[[tool.bumpversion.files]]
+filename = "setup.py"
diff --git a/setup.py b/setup.py
index 7e8f330..fd0482f 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
 
 setup(
     name='Splipy',
-    version='1.7.4',
+    version='1.8.1',
     description='Spline modelling library for Python',
     long_description_content_type='text/markdown',
     long_description=long_description,