diff --git a/tests/conftest.py b/tests/conftest.py
index 64e0f9b9..fc689113 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -32,7 +32,7 @@
 
 
 class MyProject(craft_application.models.Project):
-    def get_build_plan(self) -> List[models.BuildInfo]:
+    def get_build_plan(self) -> list[models.BuildInfo]:
         arch = craft_application.util.get_host_architecture()
         return [models.BuildInfo(arch, arch, bases.BaseName("ubuntu", "22.04"))]