diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 97b14033e..e93ce195a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -52,7 +52,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Python
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
@@ -237,7 +237,7 @@ jobs:
           merge-multiple: true
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 94877045e..c1ca1c5f7 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -28,7 +28,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b02e028f3..5859ce1c4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -87,7 +87,7 @@ jobs:
           patch -p1 -d definition < definition-update.diff
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
@@ -158,7 +158,7 @@ jobs:
           patch -p1 -d definition < definition-update.diff
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
@@ -197,7 +197,7 @@ jobs:
       - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
@@ -241,7 +241,7 @@ jobs:
       - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
@@ -266,7 +266,7 @@ jobs:
       - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |
@@ -291,7 +291,7 @@ jobs:
       - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v3.1.5
+        uses: astral-sh/setup-uv@77c28f02b3322332d4a4446b3177f426da8bf086 # v3.1.5
         with:
           enable-cache: true
           cache-dependency-glob: |