diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index bc175ce..bc2c5c3 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -37,7 +37,7 @@ jobs:
     env:
       TAG: ${{ github.event_name == 'push' && github.ref_name || inputs.tag }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
         with:
           ref: ${{ github.event_name == 'push' && github.ref_name || inputs.tag }}
 
@@ -52,7 +52,7 @@ jobs:
           fi
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
         with:
           python-version: "3.12"
 
@@ -84,7 +84,7 @@ jobs:
           cat SHA256SUMS.txt
 
       - name: Store build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: dist-${{ env.TAG }}
           path: tsapython/dist/
@@ -104,7 +104,7 @@ jobs:
         working-directory: .
     steps:
       - name: Fetch the built files
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: dist-${{ env.TAG }}
           path: dist/
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index f7fc094..e3f046c 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -18,9 +18,9 @@ jobs:
   analyze:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: github/codeql-action/init@v3
+      - uses: actions/checkout@v7
+      - uses: github/codeql-action/init@v4
         with:
           languages: python
           queries: security-and-quality
-      - uses: github/codeql-action/analyze@v3
+      - uses: github/codeql-action/analyze@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 91ac559..e943f5b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,12 +27,12 @@ jobs:
     # full matrix runs on every push via tests.yml.
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
         with:
           ref: ${{ github.event_name == 'release' && github.event.release.tag_name || inputs.tag }}
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
         with:
           python-version: "3.12"
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1c26e94..7eefb4d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -37,10 +37,10 @@ jobs:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
           python-version: ${{ matrix.python-version }}
@@ -57,7 +57,7 @@ jobs:
         # https://codecov.io. Tokenless for public repos. Safe to leave in
         # before linking -- it soft-fails.
         if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.12'
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v7
         with:
           files: tsapython/coverage.xml
           fail_ci_if_error: false
@@ -66,10 +66,10 @@ jobs:
     name: ruff + mypy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
         with:
           enable-cache: true
           python-version: "3.12"
@@ -92,10 +92,10 @@ jobs:
     name: package builds
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
 
       - name: Build sdist + wheel
         # Catches packaging breakage on every push instead of at release time.
@@ -143,7 +143,7 @@ jobs:
       run:
         working-directory: .
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: pyproject.toml, CITATION.cff and zenodo.json carry the same version
         # build-release.yml checks the tag against pyproject.toml at release