diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a86c051..d08defc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
       UV_INDEX_URL: https://pypi.org/simple
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
-      - uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # v8.1.0
+      - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9  # v9.0.0
       - run: uv lock
       - run: uv run pytest --ignore=tests/test_e2e.py --ignore=tests/test_e2e_tracing.py
 
@@ -43,7 +43,7 @@ jobs:
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020  # v4
-      - uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # v8.1.0
+      - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9  # v9.0.0
       - uses: databricks/setup-cli@bdb89f81c11a5bd647fd55b585b7c396ec68a25a  # v1.0.0
       # The agent launch tests `_require_binary("codex")` etc. and skip when
       # the CLI isn't on PATH. Install all six so each TestXxxLaunch test