diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 4a43ba0..3b6092d 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -33,7 +33,7 @@ jobs:
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
@@ -47,7 +47,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
       - run: curl -LsSf https://astral.sh/uv/install.sh | sh
@@ -66,7 +66,7 @@ jobs:
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 5368acb..93e4bcb 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -17,8 +17,8 @@ jobs:
       id-token: write
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.10
-        uses: actions/setup-python@v4
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
         with:
           python-version: "3.12"
       - name: Install pypa/build
diff --git a/.github/workflows/typeshed_primer.yml b/.github/workflows/typeshed_primer.yml
index 2593c02..226f970 100644
--- a/.github/workflows/typeshed_primer.yml
+++ b/.github/workflows/typeshed_primer.yml
@@ -37,7 +37,7 @@ jobs:
           repository: python/typeshed
           path: typeshed
       - name: Setup Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: "3.12"
       - name: Install uv
@@ -61,7 +61,7 @@ jobs:
           echo ${{ github.event.pull_request.number }} | tee pr_number.txt
           diff old_errors.txt new_errors.txt | tee errors_diff.txt
       - name: Upload diff and PR number
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: typeshed_primer_errors
           path: |
diff --git a/.github/workflows/typeshed_primer_comment.yml b/.github/workflows/typeshed_primer_comment.yml
index 5971588..f5d69c3 100644
--- a/.github/workflows/typeshed_primer_comment.yml
+++ b/.github/workflows/typeshed_primer_comment.yml
@@ -19,13 +19,13 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Download errors
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           script: await require('.github/scripts/typeshed_primer_download_errors.js')({github, context})
       - run: unzip errors.zip
       - name: Post comment
         id: post-comment
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
           script: return await require('.github/scripts/typeshed_primer_post_comment.js')({github, context})
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b6e9567..d709a1f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.5.0  # must match pyproject.toml
+    rev: v4.6.0  # must match pyproject.toml
     hooks:
       - id: trailing-whitespace
       - id: end-of-file-fixer
@@ -9,7 +9,7 @@ repos:
       - id: check-merge-conflict
       - id: mixed-line-ending
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 24.3.0 # must match pyproject.toml
+    rev: 24.4.2 # must match pyproject.toml
     hooks:
       - id: black
         language_version: python3.8
diff --git a/pyproject.toml b/pyproject.toml
index 495e9fd..a82db07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,14 +60,14 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "black==24.3.0",            # Must match .pre-commit-config.yaml
-    "flake8-bugbear==24.2.6",
+    "black==24.4.2",            # Must match .pre-commit-config.yaml
+    "flake8-bugbear==24.4.26",
     "flake8-noqa==1.4.0",
     "isort==5.13.2",            # Must match .pre-commit-config.yaml
-    "mypy==1.9.0",
-    "pre-commit-hooks==4.5.0",  # Must match .pre-commit-config.yaml
-    "pytest==8.1.1",
-    "pytest-xdist==3.5.0",
+    "mypy==1.10.0",
+    "pre-commit-hooks==4.6.0",  # Must match .pre-commit-config.yaml
+    "pytest==8.2.2",
+    "pytest-xdist==3.6.1",
     "types-pyflakes<4",
 ]