diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8c0f676..b60bf75 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
       image: ghcr.io/thombashi/python-ci:3.11
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - run: make build
 
@@ -42,7 +42,7 @@ jobs:
       image: ghcr.io/thombashi/python-ci:3.11
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - run: make docs
 
@@ -56,7 +56,7 @@ jobs:
       image: ghcr.io/thombashi/python-ci:3.13
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - run: make check
 
@@ -73,7 +73,7 @@ jobs:
     timeout-minutes: 30
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -122,7 +122,7 @@ jobs:
     timeout-minutes: 20
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index d111df3..0e5a180 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -14,7 +14,7 @@ jobs:
     timeout-minutes: 20
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           fetch-tags: true
@@ -48,7 +48,7 @@ jobs:
       id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
 
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v5
         with:
           name: dist
           path: ./dist
@@ -65,13 +65,13 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v5
         with:
           name: dist
           path: ./dist
 
       - name: Sign the dists with Sigstore
-        uses: sigstore/gh-action-sigstore-python@v3.0.0
+        uses: sigstore/gh-action-sigstore-python@v3.0.1
         with:
           inputs: >-
             ./dist/*.tar.gz