diff --git a/.gitlab/ci/test.gitlab-ci.yml b/.gitlab/ci/test.gitlab-ci.yml
index 8d0d90ded..804940aa2 100644
--- a/.gitlab/ci/test.gitlab-ci.yml
+++ b/.gitlab/ci/test.gitlab-ci.yml
@@ -1,7 +1,7 @@
 .install_debs: &install_debs
     - apt-get update -o Acquire::Retries=3
     - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ./$YNH_BUILD_DIR/*.deb
-    - pip3 install -U mock pip pytest pytest-cov pytest-mock pytest-sugar requests-mock tox ansi2html black jinja2
+    - pip3 install -U mock pip pytest pytest-cov pytest-mock pytest-sugar requests-mock tox ansi2html black jinja2 "packaging<22"
 
 .test-stage:
   stage: test
diff --git a/src/app.py b/src/app.py
index 1a6e01e0e..3084e88ed 100644
--- a/src/app.py
+++ b/src/app.py
@@ -2365,8 +2365,7 @@ def _check_manifest_requirements(manifest: Dict, action: str):
     logger.debug(m18n.n("app_requirements_checking", app=app_id))
 
     # Yunohost version requirement
-
-    yunohost_requirement = version.parse(manifest["integration"]["yunohost"] or "4.3")
+    yunohost_requirement = version.parse(manifest["integration"]["yunohost"].strip(">= ") or "4.3")
     yunohost_installed_version = version.parse(
         get_ynh_package_version("yunohost")["version"]
     )
diff --git a/src/tests/test_permission.py b/src/tests/test_permission.py
index fea928a2e..acb3419c9 100644
--- a/src/tests/test_permission.py
+++ b/src/tests/test_permission.py
@@ -258,7 +258,7 @@ def check_LDAP_db_integrity():
 
     for user in user_search:
         user_dn = "uid=" + user["uid"][0] + ",ou=users,dc=yunohost,dc=org"
-        group_list = [_ldap_path_extract(m, "cn") for m in user["memberOf"]]
+        group_list = [_ldap_path_extract(m, "cn") for m in user.get("memberOf", [])]
         permission_list = [
             _ldap_path_extract(m, "cn") for m in user.get("permission", [])
         ]