diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5f302995..927d72f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Set up uv
-        uses: astral-sh/setup-uv@d9e0f98d3fc6adb07d1e3d37f3043649ddad06a1
+        uses: astral-sh/setup-uv@4959332f0f014c5280e7eac8b70c90cb574c9f9b
         with:
           enable-cache: ${{ github.ref_type != 'tag' }} # zizmor: ignore[cache-poisoning]
       - id: noxenvs-matrix
@@ -100,7 +100,7 @@ jobs:
         if: runner.os == 'Windows' && startsWith(matrix.noxenv, 'tests')
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@d9e0f98d3fc6adb07d1e3d37f3043649ddad06a1
+        uses: astral-sh/setup-uv@4959332f0f014c5280e7eac8b70c90cb574c9f9b
         with:
           enable-cache: true
 
@@ -124,7 +124,7 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
       - name: Set up uv
-        uses: astral-sh/setup-uv@d9e0f98d3fc6adb07d1e3d37f3043649ddad06a1
+        uses: astral-sh/setup-uv@4959332f0f014c5280e7eac8b70c90cb574c9f9b
         with:
           enable-cache: true
 
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
index 4bebbe96..d4c837be 100644
--- a/.github/workflows/zizmor.yml
+++ b/.github/workflows/zizmor.yml
@@ -20,7 +20,7 @@ jobs:
           persist-credentials: false
 
       - name: Install uv
-        uses: astral-sh/setup-uv@d9e0f98d3fc6adb07d1e3d37f3043649ddad06a1
+        uses: astral-sh/setup-uv@4959332f0f014c5280e7eac8b70c90cb574c9f9b
 
       - name: Run zizmor 🌈
         run: uvx zizmor --format=sarif .github > results.sarif