diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 599bda4..8292017 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -31,9 +31,10 @@ jobs:
   main-real:
     needs: [changes]
     if: needs.changes.outputs.project_files == 'true'
-    uses: asottile/workflows/.github/workflows/tox.yml@75fa946a6d3d763b75b3a6669c18dc4d1822e939 # v1.11.1
+    uses: mxr/workflows/.github/workflows/tox-uv.yml@076755c78be86cbe7a289894eaa48660f5bcab74 # tox-uv
     with:
-      env: '["py311", "py312", "py313", "py314", "py315", "pypy3"]'
+      env: '["py311", "py312", "py313", "py314", "py315", "pypy311"]'
+      os: ubuntu-latest
   main:
     needs: [changes, main-real]
     if: always()
@@ -53,7 +54,7 @@ jobs:
   main-win-real:
     needs: [changes]
     if: needs.changes.outputs.project_files == 'true'
-    uses: asottile/workflows/.github/workflows/tox.yml@75fa946a6d3d763b75b3a6669c18dc4d1822e939 # v1.11.1
+    uses: mxr/workflows/.github/workflows/tox-uv.yml@076755c78be86cbe7a289894eaa48660f5bcab74 # tox-uv
     with:
       env: '["py311"]'
       os: windows-2025
diff --git a/pyproject.toml b/pyproject.toml
index 188902d..4342d6c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -136,11 +136,13 @@ prefer_quoted_keywords = true
 env_list = ["py", "pre-commit"]
 
 [tool.tox.env.pre-commit]  # generated by mxr/base
+runner = "uv-venv-runner"
 commands = [["pre-commit", "run", "--all-files", "--show-diff-on-failure"]]
 deps = ["pre-commit-uv"]
 skip_install = true
 
 [tool.tox.env_run_base]  # generated by mxr/base
+runner = "uv-venv-lock-runner"
 commands = [
   ["coverage", "erase"],
   ["coverage", "run", "-m", "pytest", "{posargs:tests}"],