diff --git a/.github/workflows/buildcache.yml b/.github/workflows/buildcache.yml
index 485840cb..29ce5aef 100644
--- a/.github/workflows/buildcache.yml
+++ b/.github/workflows/buildcache.yml
@@ -31,7 +31,7 @@ jobs:
             env: 'boost187'
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup spack environment
         uses: ./.github/actions/setup-deps
@@ -58,7 +58,7 @@ jobs:
     permissions:
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup spack
         uses: spack/setup-spack@v2
diff --git a/.github/workflows/check_metadata.yaml b/.github/workflows/check_metadata.yaml
index dc200b21..9bc9d1fc 100644
--- a/.github/workflows/check_metadata.yaml
+++ b/.github/workflows/check_metadata.yaml
@@ -22,7 +22,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Try updating metadata
         run: python meta_update.py
       - name: Check for Updates
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fdea64f6..2a84d0b2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
             env: 'boost187'
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
           fetch-tags: true
@@ -72,7 +72,7 @@ jobs:
             cxx-compiler: clang++
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
           fetch-tags: true
@@ -105,7 +105,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: true
           fetch-tags: true
diff --git a/.github/workflows/codemeta_validate.yaml b/.github/workflows/codemeta_validate.yaml
index 503f664c..72879c64 100644
--- a/.github/workflows/codemeta_validate.yaml
+++ b/.github/workflows/codemeta_validate.yaml
@@ -16,6 +16,6 @@ jobs:
     container:
       image: gitlab-registry.in2p3.fr/escape2020/wp3/eossr:v1.0
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: validate codemeta
         run: eossr-metadata-validator codemeta.json