diff --git a/.github/workflows/validation.yml b/.github/workflows/validation.yml
index 70c3e14..f533d5f 100644
--- a/.github/workflows/validation.yml
+++ b/.github/workflows/validation.yml
@@ -7,9 +7,9 @@ jobs:
     name: Linting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Use Node.js 12.x
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 12.x
       - name: Install dependencies
@@ -22,7 +22,7 @@ jobs:
     steps:
       - uses: actions/checkout@master
       - name: Use Node.js 12.x
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 12.x
       - name: Install dependencies
@@ -30,7 +30,7 @@ jobs:
       - name: Jest
         run: npm run test --coverage
       - name: Send coverage to codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5.4.3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           flags: unittests
@@ -41,7 +41,7 @@ jobs:
     steps:
       - uses: actions/checkout@master
       - name: Use Node.js 12.x
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 12.x
       - name: Install dependencies
@@ -55,7 +55,7 @@ jobs:
     steps:
       - uses: actions/checkout@master
       - name: Use Node.js 12.x
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 12.x
       - name: Install dependencies