diff --git a/.github/workflows/make-all.yml b/.github/workflows/make-all.yml
index ca2ab2744..f27fc7c66 100644
--- a/.github/workflows/make-all.yml
+++ b/.github/workflows/make-all.yml
@@ -15,17 +15,17 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Set up mise tools
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@5228313ee0372e111a38da051671ca30fc5a96db # v3
         with:
           install: true
           cache: true
           working_directory: elixir
 
       - name: Cache deps and build
-        uses: actions/cache@v4
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
         with:
           path: |
             elixir/deps
diff --git a/.github/workflows/pr-description-lint.yml b/.github/workflows/pr-description-lint.yml
index 9f2e6ac5f..2532abfea 100644
--- a/.github/workflows/pr-description-lint.yml
+++ b/.github/workflows/pr-description-lint.yml
@@ -13,10 +13,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Set up mise tools
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@5228313ee0372e111a38da051671ca30fc5a96db # v3
         with:
           install: true
           cache: true