diff --git a/.github/workflows/codspeed.yml b/.github/workflows/codspeed.yml
index e4f87888..db4ba35a 100644
--- a/.github/workflows/codspeed.yml
+++ b/.github/workflows/codspeed.yml
@@ -16,6 +16,8 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: "3.13"
+      - name: Generate virtual environment
+        run: python -m venv .venv
       - name: Build Python wrapper
         uses: PyO3/maturin-action@v1
         with:
@@ -23,5 +25,7 @@ jobs:
           args: --extras dev -m crates/lox-space/Cargo.toml
       - uses: CodSpeedHQ/action@v3
         with:
-          run: pytest crates/lox-space/tests/ --codspeed
+          run: |
+            . .venv/bin/activate
+            pytest crates/lox-space/tests/ --codspeed
           token: ${{ secrets.CODSPEED_TOKEN }} # Optional for public repositories