diff --git a/.github/workflows/build_latest.yml b/.github/workflows/build_latest.yml
index 3d252e1cc..4ec6ff7fd 100644
--- a/.github/workflows/build_latest.yml
+++ b/.github/workflows/build_latest.yml
@@ -17,6 +17,8 @@ jobs:
     steps:
 
     - uses: actions/checkout@v4
+      with:
+        submodules: true
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
diff --git a/.github/workflows/build_master.yml b/.github/workflows/build_master.yml
index c2a00e76f..a072bf451 100644
--- a/.github/workflows/build_master.yml
+++ b/.github/workflows/build_master.yml
@@ -14,6 +14,8 @@ jobs:
     steps:
 
     - uses: actions/checkout@v4
+      with:
+        submodules: true
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
diff --git a/.github/workflows/build_old.yml b/.github/workflows/build_old.yml
index e00d8be17..c2d4c16e3 100644
--- a/.github/workflows/build_old.yml
+++ b/.github/workflows/build_old.yml
@@ -17,6 +17,8 @@ jobs:
     steps:
 
     - uses: actions/checkout@v4
+      with:
+        submodules: true
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
diff --git a/.github/workflows/miniconda.yml b/.github/workflows/miniconda.yml
index ca4309c33..6bb31717c 100644
--- a/.github/workflows/miniconda.yml
+++ b/.github/workflows/miniconda.yml
@@ -22,6 +22,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        submodules: true
 
     - name: Setup Micromamba
       uses: mamba-org/setup-micromamba@v1