diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index c502380..e14cbf3 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -26,6 +26,8 @@ jobs:
     permissions:
       contents: write
       pull-requests: write
+    env:
+      UV_PYTHON: ${{ matrix.python-version }}
 
     strategy:
       fail-fast: false
@@ -40,11 +42,6 @@ jobs:
 
       - name: Install mise
         uses: jdx/mise-action@146a28175021df8ca24f8ee1828cc2a60f980bd5 # v3
-        with:
-          # Workaround: Use `--env ci` to load mise.ci.toml which contains constant tools (uv).
-          # This allows us to override only the Python version via install-args without duplicating
-          # tool definitions.
-          install-args: "python@${{ matrix.python-version }} --env ci"
 
       - name: Run unit tests
         run: mise run ci:test:unit
diff --git a/mise.ci.toml b/mise.ci.toml
deleted file mode 100644
index f8be079..0000000
--- a/mise.ci.toml
+++ /dev/null
@@ -1,3 +0,0 @@
-[tools]
-# only include constant tools here, dynamic versions are handled by the CI workflow
-uv = "0.9.21"
\ No newline at end of file
diff --git a/mise.toml b/mise.toml
index e9082b5..6cd7aa6 100644
--- a/mise.toml
+++ b/mise.toml
@@ -1,5 +1,6 @@
 [tools]
-python = "3.14.2"
+# reuse UV_PYTHON from the CI environment to avoid installing two versions of Python (performance)
+python = "{{ get_env(name='UV_PYTHON', default='3.14.2') }}"
 uv = "0.9.21"
 
 # https://mise.jdx.dev/mise-cookbook/python.html#mise-uv
diff --git a/renovate.json b/renovate.json
index d860981..feb6a64 100644
--- a/renovate.json
+++ b/renovate.json
@@ -13,8 +13,7 @@
       "matchPackageNames": [
         "uv",
         "uv_build",
-        "astral-sh/uv",
-        "astral-sh/setup-uv"
+        "astral-sh/uv"
       ]
     }
   ]