diff --git a/.github/workflows/continuous-deployment-workflow.yml b/.github/workflows/continuous-deployment-workflow.yml
index 263f2cc..b33bb0d 100644
--- a/.github/workflows/continuous-deployment-workflow.yml
+++ b/.github/workflows/continuous-deployment-workflow.yml
@@ -12,7 +12,7 @@ jobs:
       # Source: https://github.com/day8/dockerfile-for-dev-ci-image
       image: ghcr.io/day8/dockerfile-for-dev-ci-image/chrome-latest:2 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Maven cache
         uses: actions/cache@v4
         with:
@@ -53,7 +53,7 @@ jobs:
       # Source: https://github.com/day8/dockerfile-for-dev-ci-image
       image: ghcr.io/day8/dockerfile-for-dev-ci-image/chrome-latest:2
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Maven cache
         uses: actions/cache@v4
         with:
diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index d43332d..0525af5 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -9,7 +9,7 @@ jobs:
       # Source: https://github.com/day8/dockerfile-for-dev-ci-image
       image: ghcr.io/day8/dockerfile-for-dev-ci-image/chrome-latest:2
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Maven cache
         uses: actions/cache@v4
         with: