diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e1898e..6cddc42 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,7 @@
 
 
 ## Changed
+- Conform to PEP 440 versioning for beta versions
 - Reduce padding on keys button
 - Boldface breadcrumbs
 - Bold labels inside frames
diff --git a/dzgui/data/CHANGELOG.md b/dzgui/data/CHANGELOG.md
index 8e1898e..6cddc42 100644
--- a/dzgui/data/CHANGELOG.md
+++ b/dzgui/data/CHANGELOG.md
@@ -37,6 +37,7 @@
 
 
 ## Changed
+- Conform to PEP 440 versioning for beta versions
 - Reduce padding on keys button
 - Boldface breadcrumbs
 - Bold labels inside frames
diff --git a/pyproject.toml b/pyproject.toml
index d750a00..6d8a58b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -79,6 +79,7 @@ line-length = 88
 python_version = "3.13"
 disallow_untyped_defs = true
 warn_return_any = true
+exclude = ["lib/*"]
 
 [[tool.mypy.overrides]]
 module = [