diff --git a/.github/workflows/discover.yml b/.github/workflows/discover.yml
index 5fa3da2..e1364fc 100644
--- a/.github/workflows/discover.yml
+++ b/.github/workflows/discover.yml
@@ -13,8 +13,8 @@ jobs:
   discover:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.12"
           cache: pip
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index f4a4184..3be031f 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -13,8 +13,8 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.12"
           cache: pip