diff --git a/.github/workflows/check-divecomputer-lists.yml b/.github/workflows/check-divecomputer-lists.yml
index 357579233..91b2879d9 100644
--- a/.github/workflows/check-divecomputer-lists.yml
+++ b/.github/workflows/check-divecomputer-lists.yml
@@ -23,7 +23,11 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-    - uses: actions/checkout@v4
+    - name: checkout sources
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        submodules: recursive
 
     - name: Check the Supported Dive Computer Lists
       run: |