diff --git a/.github/workflows/indexer-image.yml b/.github/workflows/indexer-image.yml
index 6d33417..cb63018 100644
--- a/.github/workflows/indexer-image.yml
+++ b/.github/workflows/indexer-image.yml
@@ -22,7 +22,7 @@ jobs:
     name: build indexer image
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.2
 
       - name: Set image name
         run: echo "IMAGE_NAME=ghcr.io/${GITHUB_REPOSITORY,,}-indexer" >> "$GITHUB_ENV"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fa465f7..1120f3e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
       run:
         working-directory: client
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.2
       - uses: actions/setup-node@v6
         with:
           node-version: lts/*
@@ -30,7 +30,7 @@ jobs:
       run:
         working-directory: server
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.2
       - uses: actions/setup-node@v6
         with:
           node-version: lts/*
@@ -49,7 +49,7 @@ jobs:
       run:
         working-directory: indexer
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.2
       - uses: actions/setup-node@v6
         with:
           node-version: lts/*