diff --git a/pybis/src/python/CHANGELOG.md b/pybis/src/python/CHANGELOG.md
index bdc9f5702035862ddd5d32173cbb9e901ff8d6dd..2f0abd9b62c0f900166306e048abc5978f6c8f06 100644
--- a/pybis/src/python/CHANGELOG.md
+++ b/pybis/src/python/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Changes with pybis-1.9.3
+
+* fixed documentation: add_members (not add_persons)
+* bugfix role assignments of groups
+
 ## Changes with pybis-1.9.2
 
 * searches for datasets and samples are highly improved
diff --git a/pybis/src/python/README.md b/pybis/src/python/README.md
index 5a525c397433f583f80bd80189d97610a8ab7500..ef065b428f2ec16b9d9b00028f908a1a20cddc0e 100644
--- a/pybis/src/python/README.md
+++ b/pybis/src/python/README.md
@@ -126,9 +126,9 @@ group.assign_role(role='ADMIN', space='DEFAULT')
 group.get_roles() 
 group.revoke_role(role='ADMIN', space='DEFAULT')
 
-group.add_persons(['admin'])
-group.get_persons()
-group.del_persons(['admin'])
+group.add_members(['admin'])
+group.get_members()
+group.del_members(['admin'])
 group.delete()
 
 o.get_persons()
diff --git a/pybis/src/python/pybis/__init__.py b/pybis/src/python/pybis/__init__.py
index b2c5fe70dd5b62fe2b565da8abc8041646f66371..c09faa979fdad428ea5009396b3390cdd526bfbe 100644
--- a/pybis/src/python/pybis/__init__.py
+++ b/pybis/src/python/pybis/__init__.py
@@ -1,7 +1,7 @@
 name = 'pybis'
 __author__ = 'Swen Vermeul'
 __email__ = 'swen@ethz.ch'
-__version__ = '1.9.2'
+__version__ = '1.9.3'
 
 from . import pybis
 from .pybis import Openbis
diff --git a/pybis/src/python/pybis/pybis.py b/pybis/src/python/pybis/pybis.py
index e65ecd7eca255edbe58d63450597f013a1515285..d44a332a0219219e1c65b2ece10331a6a23e5e4c 100644
--- a/pybis/src/python/pybis/pybis.py
+++ b/pybis/src/python/pybis/pybis.py
@@ -1135,7 +1135,7 @@ class Openbis:
                     else:
                         groupId = search_args[attr].code
                     sub_crit.append(
-                        _subcriteria_for_permid(groupId, 'AuthorizationGroup')
+                        _subcriteria_for_permid(groupId, 'authorizationGroup')
                     )
                 elif attr == 'role':
                     # TODO
diff --git a/pybis/src/python/setup.py b/pybis/src/python/setup.py
index b7f8b9853da7d66554103c7c93286cd344a3eb3d..d98d25fa4d55669e55272c2d728a0b6a57241c5c 100644
--- a/pybis/src/python/setup.py
+++ b/pybis/src/python/setup.py
@@ -11,7 +11,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
 
 setup(
     name='PyBIS',
-    version= '1.9.2',
+    version= '1.9.3',
     author='Swen Vermeul • ID SIS • ETH Zürich',
     author_email='swen@ethz.ch',
     description='openBIS connection and interaction, optimized for using with Jupyter',
diff --git a/pybis/src/python/tests/conftest.py b/pybis/src/python/tests/conftest.py
index 677de709a3f316e1eb0806ec0ed2cf7e95f4388c..1568409e701a0c6e37da8fcab45941ae1cf6d83a 100644
--- a/pybis/src/python/tests/conftest.py
+++ b/pybis/src/python/tests/conftest.py
@@ -3,9 +3,12 @@ import time
 
 from pybis import Openbis
 
-openbis_url = 'https://localhost:8443'
-admin_username = 'admin'
-admin_password = 'changeit'
+#openbis_url = 'https://localhost:8443'
+#admin_username = 'admin'
+#admin_password = 'changeit'
+openbis_url = 'http://localhost:20000'
+admin_username = 'openbis_test_js'
+admin_password = 'password'
 
 @pytest.yield_fixture(scope="module")
 def openbis_instance():
diff --git a/pybis/src/python/tests/test_group.py b/pybis/src/python/tests/test_group.py
index 9e3268332131fe216aa8479ba01bd9125e8807d1..cb3e8dad9fd2cb8b55de3e054437e8e837d6dfeb 100644
--- a/pybis/src/python/tests/test_group.py
+++ b/pybis/src/python/tests/test_group.py
@@ -27,12 +27,12 @@ def test_crud_group(openbis_instance, group):
     changed_description = 'changed description of group ' + group.code
     group.description = changed_description
     group.save()
-    group_changed = openbis_instance.get_group(code=group.code)
+    group_changed = openbis_instance.get_group(group.code)
     assert group_changed.description == changed_description
 
     group.delete('test')
     with pytest.raises(ValueError):
-        group_not_exists = openbis_instance.get_group(code=group.code)
+        group_not_exists = openbis_instance.get_group(group.code)
         assert group_not_exists is None