diff --git a/HISTORY.rst b/HISTORY.rst
index d1a91a2f..05d8ba4c 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -14,6 +14,8 @@ Unreleased
 
 * Add `use_git_change_detection` config (default true) to opt out of git-based detection
 
+* Add `uv.lock`, `poetry.lock`, `Pipfile.lock`, and `pdm.lock` to the list of files copied by default
+
 * Invalidate cached results automatically when result-affecting config fields change
 
 
diff --git a/src/mutmut/configuration.py b/src/mutmut/configuration.py
index 3324e7ba..5d7361df 100644
--- a/src/mutmut/configuration.py
+++ b/src/mutmut/configuration.py
@@ -132,6 +132,10 @@ def _load_config() -> Config:
             Path("test/"),
             Path("setup.cfg"),
             Path("pyproject.toml"),
+            Path("uv.lock"),
+            Path("poetry.lock"),
+            Path("Pipfile.lock"),
+            Path("pdm.lock"),
         ]
         + list(Path(".").glob("test*.py")),
         max_stack_depth=s("max_stack_depth", -1),
diff --git a/tests/test_configuration.py b/tests/test_configuration.py
index 8449fcbc..00192e3c 100644
--- a/tests/test_configuration.py
+++ b/tests/test_configuration.py
@@ -361,3 +361,7 @@ def test_also_copy_includes_defaults(self, in_tmp_dir: Path):
         assert Path("test/") in config.also_copy
         assert Path("setup.cfg") in config.also_copy
         assert Path("pyproject.toml") in config.also_copy
+        assert Path("uv.lock") in config.also_copy
+        assert Path("poetry.lock") in config.also_copy
+        assert Path("Pipfile.lock") in config.also_copy
+        assert Path("pdm.lock") in config.also_copy