diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e5026d61..493f7c7d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: docker build / start
         run: docker-compose -f docker-compose.ci.yml up -d
       - name: wait for nginx
@@ -35,7 +35,7 @@ jobs:
           - 27017:27017
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: wait for databases
         run: |
           while ! nc -z localhost 27017; do sleep 0.1; done
@@ -59,7 +59,7 @@ jobs:
           - 27017:27017
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: wait for databases
         run: |
           while ! nc -z localhost 27017; do sleep 0.1; done
@@ -83,7 +83,7 @@ jobs:
           - 27017:27017
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: wait for databases
         run: |
           while ! nc -z localhost 27017; do sleep 0.1; done