diff --git a/.github/workflows/testing.yaml b/.github/workflows/testing.yaml
index 54578e0..58766c2 100644
--- a/.github/workflows/testing.yaml
+++ b/.github/workflows/testing.yaml
@@ -325,7 +325,7 @@ jobs:
       # -m pytest' resolves to the same one.
       - name: "Set up uv"
         # yamllint disable-line rule:line-length
-        uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
           python-version: ${{ env.python_version }}
           activate-environment: true
diff --git a/action.yaml b/action.yaml
index 0a0f98a..ac14941 100644
--- a/action.yaml
+++ b/action.yaml
@@ -621,7 +621,7 @@ runs:
 
     - name: 'Install uv and provision Python'
       # yamllint disable-line rule:line-length
-      uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+      uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
       with:
         # uv is the sole Python provisioner for this action. We do NOT
         # use actions/setup-python alongside it, because doing so caused