diff --git a/swh/lister/arch/lister.py b/swh/lister/arch/lister.py
--- a/swh/lister/arch/lister.py
+++ b/swh/lister/arch/lister.py
@@ -131,7 +131,7 @@
 
 def pkgbuild_get_versions(
     repository_path: Path, pkgbuild_path: Path
-) -> list[Dict[str, Any]]:
+) -> List[Dict[str, Any]]:
     """Retrieve all previous versions of an Arch Linux package.
 
     Note that Arch Linux strives to maintain the latest stable release