diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index d32dcddc..ec6985c8 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -58,7 +58,7 @@ jobs:
           persist-credentials: false
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e  # v4.36.2
+        uses: github/codeql-action/init@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a  # v4.36.3
         with:
           languages: ${{ matrix.language }}
           # Neither the Python tools (stdlib-only / single OAuth dep, no
@@ -68,6 +68,6 @@ jobs:
           queries: security-and-quality
 
       - name: Perform CodeQL analysis
-        uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e  # v4.36.2
+        uses: github/codeql-action/analyze@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a  # v4.36.3
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index 683b3198..2aacfbd5 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -44,7 +44,7 @@ jobs:
       #  - the `uv tool install prek` step below.
       # Minimum uv version is pinned in the root `pyproject.toml`
       # (`[tool.uv] required-version`).
-      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
+      - uses: astral-sh/setup-uv@f98e06938123ccabd21905ea5d0069192241f9f1  # v8.3.1
         with:
           enable-cache: true
       # Sync the uv workspace with the dev group so that
diff --git a/.github/workflows/sandbox-lint.yml b/.github/workflows/sandbox-lint.yml
index 4002085b..b57ce265 100644
--- a/.github/workflows/sandbox-lint.yml
+++ b/.github/workflows/sandbox-lint.yml
@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
+      - uses: astral-sh/setup-uv@f98e06938123ccabd21905ea5d0069192241f9f1  # v8.3.1
         with:
           enable-cache: true
       # Sync the workspace so `sandbox-lint` (a workspace member's
diff --git a/.github/workflows/skill-and-tool-validator.yml b/.github/workflows/skill-and-tool-validator.yml
index 24568b8c..e0d49e9b 100644
--- a/.github/workflows/skill-and-tool-validator.yml
+++ b/.github/workflows/skill-and-tool-validator.yml
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
+      - uses: astral-sh/setup-uv@f98e06938123ccabd21905ea5d0069192241f9f1  # v8.3.1
         with:
           enable-cache: true
       # Sync every workspace member so the validator's
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 58f03ff8..ea764995 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -181,7 +181,7 @@ jobs:
       # `pyproject.toml` + the workspace `uv.lock`. Minimum uv
       # version is enforced by the root `pyproject.toml`'s
       # `[tool.uv] required-version`.
-      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
+      - uses: astral-sh/setup-uv@f98e06938123ccabd21905ea5d0069192241f9f1  # v8.3.1
         with:
           enable-cache: true
       - name: Sync workspace (installs ruff / mypy / pytest from root dev group)