diff --git a/.github/workflows/buildtest.yml b/.github/workflows/buildtest.yml
index b094c4895..729010904 100644
--- a/.github/workflows/buildtest.yml
+++ b/.github/workflows/buildtest.yml
@@ -36,7 +36,7 @@ jobs:
       VIMVER: ${{ matrix.type }}-${{ matrix.vim }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup env
         run: |
           cat ENVFILE >> $GITHUB_ENV
@@ -94,13 +94,13 @@ jobs:
         run: |
           echo "set luadll=$(brew --prefix lua)/lib/liblua.dylib" > ${GITHUB_WORKSPACE}/.themisrc
       - name: Setup vim-themis
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: thinca/vim-themis
           ref: ${{ env.THEMIS_VERSION }}
           path: ${{ github.workspace }}/vim-themis
       - name: Setup vimproc
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: Shougo/vimproc.vim
           path: ${{ github.workspace }}/vimproc
@@ -153,7 +153,7 @@ jobs:
         run: |
           git config --global core.autocrlf input
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup env
         shell: bash
         run: |
@@ -227,13 +227,13 @@ jobs:
           vim_type: '${{ matrix.type }}'
           download: '${{ matrix.vim_download || matrix.download }}'
       - name: Setup vim-themis
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: thinca/vim-themis
           ref: ${{ env.THEMIS_VERSION }}
           path: ${{ github.workspace }}/vim-themis
       - name: Setup vimproc
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: Shougo/vimproc.vim
           ref: ${{ env.VIMPROC_VERSION }}
diff --git a/.github/workflows/depup.yml b/.github/workflows/depup.yml
index 654bad05c..5d07d7321 100644
--- a/.github/workflows/depup.yml
+++ b/.github/workflows/depup.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: true
 
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: true
 
diff --git a/.github/workflows/reviewdog.yml b/.github/workflows/reviewdog.yml
index 9a9ae4daf..d7155f078 100644
--- a/.github/workflows/reviewdog.yml
+++ b/.github/workflows/reviewdog.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code.
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: haya14busa/action-cond@v1
         id: reporter
         with:
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code.
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: haya14busa/action-cond@v1
         id: reporter
         with:
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code.
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: haya14busa/action-cond@v1
         id: reporter
         with:
@@ -65,7 +65,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code.
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: haya14busa/action-cond@v1
         id: reporter
         with:
diff --git a/.github/workflows/vimhelptagcheck.yml b/.github/workflows/vimhelptagcheck.yml
index a4c02b6ae..de36d6047 100644
--- a/.github/workflows/vimhelptagcheck.yml
+++ b/.github/workflows/vimhelptagcheck.yml
@@ -7,6 +7,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: help tag check
         uses: tsuyoshicho/action-vimhelp-tagname-check@v1