diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f50296b..3d7b13c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,10 +8,10 @@ jobs:
   ci:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Setup Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe # v4.1.0
         with:
           go-version: "1.21.5"
 
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 02384c9..05ab7e4 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
 
       - name: Dependency review
-        uses: actions/dependency-review-action@v1
\ No newline at end of file
+        uses: actions/dependency-review-action@a9c83d3af6b9031e20feba03b904645bb23d1dab # v1.0.2
\ No newline at end of file
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index 188ac13..057d396 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -8,7 +8,7 @@ jobs:
   shellcheck:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
     - name: Shellcheck
       run: |
         .github/workflows/scripts/run-shellcheck.sh