diff --git a/src/keycloak/keycloak_admin.py b/src/keycloak/keycloak_admin.py
index eb6702a..575ee6d 100644
--- a/src/keycloak/keycloak_admin.py
+++ b/src/keycloak/keycloak_admin.py
@@ -989,8 +989,6 @@ class KeycloakAdmin:
                 group["subGroups"] = self.get_group_children(
                     group_id=group.get("id"), full_hierarchy=full_hierarchy
                 )
-            else:
-                group["subGroups"] = []
 
         return groups
 
@@ -1022,8 +1020,6 @@ class KeycloakAdmin:
             group["subGroups"] = self.get_group_children(
                 group.get("id"), full_hierarchy=full_hierarchy
             )
-        else:
-            group["subGroups"] = []
 
         return group
 
@@ -1086,8 +1082,6 @@ class KeycloakAdmin:
                 group["subGroups"] = self.get_group_children(
                     group_id=group.get("id"), full_hierarchy=full_hierarchy
                 )
-            else:
-                group["subGroups"] = []
 
         return res
 
diff --git a/tests/test_keycloak_admin.py b/tests/test_keycloak_admin.py
index c5540f4..cfd724e 100644
--- a/tests/test_keycloak_admin.py
+++ b/tests/test_keycloak_admin.py
@@ -1,12 +1,14 @@
 """Test the keycloak admin object."""
 
 import copy
+import os
 import uuid
 from typing import Tuple
 
 import freezegun
 import pytest
 from dateutil import parser as datetime_parser
+from packaging.version import Version
 
 import keycloak
 from keycloak import KeycloakAdmin, KeycloakOpenID, KeycloakOpenIDConnection
@@ -805,16 +807,19 @@ def test_groups(admin: KeycloakAdmin, user: str):
     res = admin.get_groups(full_hierarchy=True)
     assert len(res) == 1
     assert len(res[0]["subGroups"]) == 2
-    assert len(res[0]["subGroups"][0]["subGroups"]) == 0
-    assert len(res[0]["subGroups"][1]["subGroups"]) == 1
+    assert len([x for x in res[0]["subGroups"] if x["id"] == subgroup_id_1][0]["subGroups"]) == 0
+    assert len([x for x in res[0]["subGroups"] if x["id"] == subgroup_id_2][0]["subGroups"]) == 1
 
     # Test that query params are not allowed for full hierarchy
     with pytest.raises(ValueError) as err:
         admin.get_group_children(group_id=group_id, full_hierarchy=True, query={"max": 10})
 
     # Test that query params are passed
-    res = admin.get_group_children(group_id=group_id, query={"max": 1})
-    assert len(res) == 1
+    if os.environ["KEYCLOAK_DOCKER_IMAGE_TAG"] == "latest" or Version(
+        os.environ["KEYCLOAK_DOCKER_IMAGE_TAG"]
+    ) >= Version("23"):
+        res = admin.get_group_children(group_id=group_id, query={"max": 1})
+        assert len(res) == 1
 
     assert err.match("Cannot use both query and full_hierarchy parameters")