diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 6f50290..d1af576 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -20,12 +20,12 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v2
+        uses: github/codeql-action/init@0116bc2df50751f9724a2e35ef1f24d22f90e4e1 # v2
         with:
           languages: python
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v2
+        uses: github/codeql-action/analyze@0116bc2df50751f9724a2e35ef1f24d22f90e4e1 # v2
diff --git a/.github/workflows/continous-integration.yml b/.github/workflows/continous-integration.yml
index dd8c798..1f9552d 100644
--- a/.github/workflows/continous-integration.yml
+++ b/.github/workflows/continous-integration.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
 
       - uses: boidolr/actions/python-pip-env@main
         with:
@@ -37,5 +37,5 @@ jobs:
   precommit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
       - uses: boidolr/actions/run-precommit@main
diff --git a/.github/workflows/pre-commit-update.yml b/.github/workflows/pre-commit-update.yml
index 48284b6..db92b5f 100644
--- a/.github/workflows/pre-commit-update.yml
+++ b/.github/workflows/pre-commit-update.yml
@@ -14,7 +14,7 @@ jobs:
       BRANCH: main
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
 
       - uses: boidolr/actions/run-precommit@main
         with: