--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -23,6 +23,8 @@
 @pytest.fixture
 def scm(fixture_project: Path) -> None:
     subprocess.check_call(["git", "init"])
+    subprocess.check_call(["git", "config", "--local", "user.name", "example"])
+    subprocess.check_call(["git", "config", "--local", "user.email", "example@example.com"])
     subprocess.check_call(["git", "add", "."])
     subprocess.check_call(["git", "commit", "-m", "initial commit"])
     subprocess.check_call(["git", "tag", "-a", "0.1.0", "-m", "version 0.1.0"])
--- a/tests/pdm/backend/hooks/version/test_scm.py
+++ b/tests/pdm/backend/hooks/version/test_scm.py
@@ -126,6 +126,8 @@
     def __init__(self, cmd: Path, cwd: Path) -> None:
         super().__init__(cmd, cwd)
         self.run("config", "commit.gpgsign", "false")
+        self.run("config", "--local", "user.name", "example")
+        self.run("config", "--local", "user.email", "example@example.com")
 
     def _init(self):
         self.run("init")