diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..143c2f5
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.8.19
diff --git a/.reuse/dep5 b/.reuse/dep5
index afd900e..e253c6e 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -11,6 +11,6 @@ Files: Pipfile.lock migrations/*
 Copyright: WTF Kooperative eG <https://wtf-eg.de/>
 License: AGPL-3.0-or-later
 
-Files: renovate.json
+Files: renovate.json .python-version
 Copyright: WTF Kooperative eG <https://wtf-eg.de/>
 License: AGPL-3.0-or-later