diff --git a/changelogs/fragments/9692-update-more-than-10-keycloak-sub-groups.yml b/changelogs/fragments/9692-update-more-than-10-keycloak-sub-groups.yml
new file mode 100644
index 0000000000..6253dd716a
--- /dev/null
+++ b/changelogs/fragments/9692-update-more-than-10-keycloak-sub-groups.yml
@@ -0,0 +1,2 @@
+bugfixes:
+    - keycloak - update more than 10 sub-groups (https://github.com/ansible-collections/community.general/issues/9690, https://github.com/ansible-collections/community.general/pull/9692).
diff --git a/plugins/module_utils/identity/keycloak/keycloak.py b/plugins/module_utils/identity/keycloak/keycloak.py
index 648cad76bc..45216a9302 100644
--- a/plugins/module_utils/identity/keycloak/keycloak.py
+++ b/plugins/module_utils/identity/keycloak/keycloak.py
@@ -1551,7 +1551,7 @@ class KeycloakAPI(object):
             if parent['subGroupCount'] == 0:
                 group_children = []
             else:
-                group_children_url = URL_GROUP_CHILDREN.format(url=self.baseurl, realm=realm, groupid=parent['id'])
+                group_children_url = URL_GROUP_CHILDREN.format(url=self.baseurl, realm=realm, groupid=parent['id']) + "?max=" + str(parent['subGroupCount'])
                 group_children = self._request_and_deserialize(group_children_url, method="GET")
             subgroups = group_children
         else: