diff --git a/.github/workflows/vol_adios2.yml b/.github/workflows/vol_adios2.yml
index c4bd2d009c5..d05d35427d5 100644
--- a/.github/workflows/vol_adios2.yml
+++ b/.github/workflows/vol_adios2.yml
@@ -28,7 +28,6 @@ jobs:
       - name: Checkout HDF5
         uses: actions/checkout@v4.1.7
         with:
-          repository: HDFGroup/hdf5
           path: hdf5
 
       - name: Configure HDF5
diff --git a/.github/workflows/vol_async.yml b/.github/workflows/vol_async.yml
index 371db471828..1d6861ac503 100644
--- a/.github/workflows/vol_async.yml
+++ b/.github/workflows/vol_async.yml
@@ -24,7 +24,6 @@ jobs:
       - name: Checkout HDF5
         uses: actions/checkout@v4.1.7
         with:
-          repository: HDFGroup/hdf5
           path: hdf5
 
       - name: Checkout Argobots
diff --git a/.github/workflows/vol_cache.yml b/.github/workflows/vol_cache.yml
index 3c55afdde8c..70f325ca2dd 100644
--- a/.github/workflows/vol_cache.yml
+++ b/.github/workflows/vol_cache.yml
@@ -37,7 +37,6 @@ jobs:
       - name: Checkout HDF5
         uses: actions/checkout@v4.1.7
         with:
-          repository: HDFGroup/hdf5
           path: hdf5
 
       - name: Checkout Argobots
diff --git a/.github/workflows/vol_ext_passthru.yml b/.github/workflows/vol_ext_passthru.yml
index a276dc3ae88..b9579063638 100644
--- a/.github/workflows/vol_ext_passthru.yml
+++ b/.github/workflows/vol_ext_passthru.yml
@@ -24,7 +24,6 @@ jobs:
       - name: Checkout HDF5
         uses: actions/checkout@v4.1.7
         with:
-          repository: HDFGroup/hdf5
           path: hdf5
 
       - name: Checkout vol-external-passthrough
diff --git a/.github/workflows/vol_log.yml b/.github/workflows/vol_log.yml
index f8c7ce73ea1..a7becfd4830 100644
--- a/.github/workflows/vol_log.yml
+++ b/.github/workflows/vol_log.yml
@@ -25,7 +25,6 @@ jobs:
       - name: Checkout HDF5
         uses: actions/checkout@v4.1.7
         with:
-          repository: HDFGroup/hdf5
           path: hdf5
 
       # Log-based VOL currently doesn't have CMake support
diff --git a/.github/workflows/vol_rest.yml b/.github/workflows/vol_rest.yml
index 0a54890d605..487f854e9f1 100644
--- a/.github/workflows/vol_rest.yml
+++ b/.github/workflows/vol_rest.yml
@@ -44,7 +44,6 @@ jobs:
       - name: Checkout HDF5
         uses: actions/checkout@v4.1.7
         with:
-          repository: HDFGroup/hdf5
           path: hdf5
 
       - name: Configure HDF5 with REST VOL connector