diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aa46f2f5..8ad7be2a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,6 +11,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Install dependencies
         run: 'pip install .[testing]'
@@ -34,6 +36,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Install dependencies
         run: 'pip install .[qa]'
@@ -49,6 +53,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Install dependencies
         run: 'pip install .[testing] coverage'