diff --git a/ogr/services/gitlab/pull_request.py b/ogr/services/gitlab/pull_request.py
index 5c3d810d..392b835e 100644
--- a/ogr/services/gitlab/pull_request.py
+++ b/ogr/services/gitlab/pull_request.py
@@ -240,10 +240,17 @@ def get_list(
         status: PRStatus = PRStatus.open,
     ) -> list["PullRequest"]:
         # Gitlab API has status 'opened', not 'open'
+        # f"Calling a `list()` method without specifying `get_all=True` or "
+        # f"`iterator=True` will return a maximum of 20 items. "
         mrs = project.gitlab_repo.mergerequests.list(
             state=status.name if status != PRStatus.open else "opened",
             order_by="updated_at",
             sort="desc",
+            # new gitlab syntax
+            get_all=True,
+            # gitlab 3.3 syntax
+            # https://github.com/python-gitlab/python-gitlab/blob/v3.3.0/gitlab/client.py#L815
+            all=True,
         )
         return [GitlabPullRequest(mr, project) for mr in mrs]