diff --git a/.github/workflows/elasticsearch.yml b/.github/workflows/elasticsearch.yml
index fc95866..4304c09 100644
--- a/.github/workflows/elasticsearch.yml
+++ b/.github/workflows/elasticsearch.yml
@@ -18,7 +18,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: isec-tut
diff --git a/.github/workflows/growi.yml b/.github/workflows/growi.yml
index e964193..d5b636d 100644
--- a/.github/workflows/growi.yml
+++ b/.github/workflows/growi.yml
@@ -18,7 +18,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
diff --git a/.github/workflows/hackmd.yml b/.github/workflows/hackmd.yml
index 64edcc4..5021e45 100644
--- a/.github/workflows/hackmd.yml
+++ b/.github/workflows/hackmd.yml
@@ -18,7 +18,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: isec-tut
diff --git a/.github/workflows/kubectl.yml b/.github/workflows/kubectl.yml
index acb2f11..18d9c3e 100644
--- a/.github/workflows/kubectl.yml
+++ b/.github/workflows/kubectl.yml
@@ -18,7 +18,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
diff --git a/.github/workflows/nextcloud.yml b/.github/workflows/nextcloud.yml
index 8f5d92a..aadd7e2 100644
--- a/.github/workflows/nextcloud.yml
+++ b/.github/workflows/nextcloud.yml
@@ -18,7 +18,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}