diff --git a/.github/workflows/clingo.yml b/.github/workflows/clingo.yml
index 84c5992..e36f8ba 100644
--- a/.github/workflows/clingo.yml
+++ b/.github/workflows/clingo.yml
@@ -36,13 +36,13 @@ jobs:
     env:
       MACOSX_DEPLOYMENT_TARGET: ${{ matrix.runner[1] }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack
           path: spack
           ref: 734c5db2121b01c373eed6538e452f18887e9e44
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack-packages
           path: spack-packages
@@ -85,7 +85,7 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: docker/setup-qemu-action@v3
         if: ${{ matrix.arch != 'amd64' }}
         with:
@@ -131,13 +131,13 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ macos_build, manylinux2014_build ]
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack
           path: spack
           ref: 734c5db2121b01c373eed6538e452f18887e9e44
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack-packages
           path: spack-packages
diff --git a/.github/workflows/gnupg.yml b/.github/workflows/gnupg.yml
index 89a4013..0c9ad71 100644
--- a/.github/workflows/gnupg.yml
+++ b/.github/workflows/gnupg.yml
@@ -36,13 +36,13 @@ jobs:
     env:
       MACOSX_DEPLOYMENT_TARGET: ${{ matrix.runner[2] }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack
           path: spack
           ref: 734c5db2121b01c373eed6538e452f18887e9e44
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack-packages
           path: spack-packages
@@ -82,7 +82,7 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: docker/setup-qemu-action@v3
         if: ${{ matrix.arch != 'amd64' }}
         with:
@@ -121,13 +121,13 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ macos_build, manylinux2014_build ]
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack
           path: spack
           ref: 734c5db2121b01c373eed6538e452f18887e9e44
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack-packages
           path: spack-packages
diff --git a/.github/workflows/patchelf.yml b/.github/workflows/patchelf.yml
index 46ff5a1..612d26b 100644
--- a/.github/workflows/patchelf.yml
+++ b/.github/workflows/patchelf.yml
@@ -30,7 +30,7 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: docker/setup-qemu-action@v3
         if: ${{ matrix.arch != 'amd64' }}
         with:
@@ -69,13 +69,13 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ manylinux2014_build ]
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack
           path: spack
           ref: 734c5db2121b01c373eed6538e452f18887e9e44
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: spack/spack-packages
           path: spack-packages