diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index 83c9e6f..54440cb 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -19,7 +19,7 @@ jobs:
           packages_ref: v2025.11.0
     steps:
     - name: Checkout
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
     - name: Set up Spack
       uses: ./
diff --git a/action.yml b/action.yml
index 464fbb4..f033b8d 100644
--- a/action.yml
+++ b/action.yml
@@ -41,14 +41,14 @@ runs:
   using: "composite"
   steps:
   - name: Checkout Spack
-    uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
     with:
       repository: ${{ inputs.spack_repository }}
       path: ${{ inputs.spack_path }}
       ref: ${{ inputs.spack_ref }}
 
   - name: Checkout Spack packages
-    uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
     with:
       repository: ${{ inputs.packages_repository }}
       path: ${{ inputs.packages_path }}