diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9aef276..6dba947 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v6
         with:
           node-version: '22'
@@ -39,7 +39,7 @@ jobs:
       run:
         working-directory: backend
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -80,7 +80,7 @@ jobs:
       run:
         working-directory: backend
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -121,7 +121,7 @@ jobs:
       run:
         working-directory: frontend
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node
         uses: actions/setup-node@v6
@@ -147,7 +147,7 @@ jobs:
       run:
         working-directory: frontend
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node
         uses: actions/setup-node@v6
@@ -170,7 +170,7 @@ jobs:
       run:
         working-directory: frontend
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node
         uses: actions/setup-node@v6
@@ -190,6 +190,6 @@ jobs:
     name: Dockerfile lint (hadolint)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: hadolint (same `make lint-docker` as local)
         run: make lint-docker