diff --git a/.github/actions/setup-python/action.yml b/.github/actions/setup-python/action.yml
index 80197dc0d6..584eb82ea5 100644
--- a/.github/actions/setup-python/action.yml
+++ b/.github/actions/setup-python/action.yml
@@ -53,7 +53,7 @@ runs:
       # We always run `rye sync` even if the cache fetch was successful since it builds our Rust extensions for us.
       run: rye sync --no-lock
       env:
-        MATURIN_PEP517_ARGS: "--profile dev"
+        MATURIN_PEP517_ARGS: "--profile dev --locked"
 
     - name: Export Path
       shell: bash
diff --git a/pyvortex/test/conftest.py b/pyvortex/test/conftest.py
index ebcbeb262a..74a43ccca3 100644
--- a/pyvortex/test/conftest.py
+++ b/pyvortex/test/conftest.py
@@ -8,4 +8,4 @@
 def pytest_sessionstart():
     """Pytest plugin to trigger maturin builds before running tests."""
     working_dir = pathlib.Path(__file__).parent.parent
-    subprocess.check_call(["maturin", "develop", "-v", "--skip-install", "--locked", "--frozen"], cwd=working_dir)
+    subprocess.check_call(["maturin", "develop", "-v", "--skip-install", "--locked"], cwd=working_dir)