diff --git a/pyproject.toml b/pyproject.toml
index de68c82..1972ced 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,9 @@ local_scheme = "no-local-version"
 fallback_version = "0.0.0.dev0"
 
 [tool.black]
-exclude = "_version.py"
+exclude = """
+^/( ( examples ) /| anaflow/_version.py )
+"""
 line-length = 79
 target-version = [
     "py36",