diff --git a/src/isal/_version.pyi b/src/isal/_version.pyi
index bd8c70e0..e59e7032 100644
--- a/src/isal/_version.pyi
+++ b/src/isal/_version.pyi
@@ -5,4 +5,4 @@
 # This file is part of python-isal which is distributed under the
 # PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2.
 
-__version__: int
+__version__: str