diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b08fb5593b6f52f49a3ad4a7b59295da84011c40..40ebb11fd9d8428c6a34a5b07e43d4c5e4fbca1a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,6 +9,7 @@ upload:
     TWINE_USERNAME: gitlab-ci-token
     TWINE_PASSWORD: $CI_JOB_TOKEN
     PYPI_REPO: $CI_API_V4_URL/projects/$CI_PROJECT_ID/packages/pypi
+    GIT_SUBMODULE_STRATEGY: recursive
   script:
     - apk add bash make gcc g++ linux-headers musl-dev libffi-dev
     - make release