diff --git a/.github/workflows/galaxy.yml b/.github/workflows/galaxy.yml
index 96fe2bc..07073dc 100644
--- a/.github/workflows/galaxy.yml
+++ b/.github/workflows/galaxy.yml
@@ -10,6 +10,6 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: galaxy
-        uses: robertdebock/galaxy-action@1.2.1
+        uses: robertdebock/galaxy-action@7d89099e09f4385ec4b53eb58c0d120f1ad806dd # 1.2.1
         with:
           galaxy_api_key: ${{ secrets.galaxy_api_key }}
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index c3f879c..d8cd8a2 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,12 +12,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out the codebase.
-        uses: actions/checkout@v3
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           path: "${{ github.repository }}"
 
       - name: Set up Python 3.
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.x'
 
diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index b720f21..c1a59a5 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -10,10 +10,10 @@ jobs:
   pre-commit:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v3
-    - uses: actions/setup-python@v4
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
       with:
         python-version: '3.x'
 
     - name: Run pre-commit
-      uses: pre-commit/action@v3.0.0
+      uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
diff --git a/.github/workflows/release-drafter.yml b/.github/workflows/release-drafter.yml
index 7cae11f..bb09d6c 100644
--- a/.github/workflows/release-drafter.yml
+++ b/.github/workflows/release-drafter.yml
@@ -17,7 +17,7 @@ jobs:
   update_release_draft:
     runs-on: ubuntu-latest
     steps:
-      - uses: release-drafter/release-drafter@v5
+      - uses: release-drafter/release-drafter@563bf132657a13ded0b01fcb723c5a58cdd824e2 # v7.2.1
         with:
           config-name: RELEASE_DRAFTER.yml
         env:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9235011..b90732a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -38,12 +38,12 @@ jobs:
           - os: "rockylinux8"
     steps:
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           path: "${{ github.repository }}"
 
       - name: Set up Python 3
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.x'
 
@@ -79,12 +79,12 @@ jobs:
           - os: "rockylinux8"
     steps:
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           path: "${{ github.repository }}"
 
       - name: Set up Python 3
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.x'