diff --git a/popmon/version.py b/popmon/version.py
index 7113b242..90c314f7 100644
--- a/popmon/version.py
+++ b/popmon/version.py
@@ -1,3 +1,3 @@
 """THIS FILE IS AUTO-GENERATED BY SETUP.PY."""
 
-version = "1.4.1"
+version = "1.4.0"
diff --git a/pyproject.toml b/pyproject.toml
index 7d1b1b52..acac8e03 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "popmon"
-version = "1.4.1"
+version = "1.4.0"
 description = "Monitor the stability of a pandas or spark dataset"
 keywords = [
     "pandas",