diff --git a/zuul.d/wallaby_jobs.yaml b/zuul.d/wallaby_jobs.yaml
index 6f4648a..9fce55b 100644
--- a/zuul.d/wallaby_jobs.yaml
+++ b/zuul.d/wallaby_jobs.yaml
@@ -127,6 +127,13 @@
           (^tempest.api.compute.servers.test_multiple_create)"
       network_api_extensions: *api_extensions
       network_available_features: *available_features
+      # TODO(slaweq): remove trunks subport_connectivity test from blacklist
+      # when bug https://bugs.launchpad.net/neutron/+bug/1838760 will be fixed
+      # TODO(akatz): remove established tcp session verification test when the
+      # bug https://bugzilla.redhat.com/show_bug.cgi?id=1965036 will be fixed
+      tempest_exclude_regex: "\
+          (^neutron_tempest_plugin.scenario.test_trunk.TrunkTest.test_subport_connectivity)|\
+          (^neutron_tempest_plugin.scenario.test_security_groups.NetworkSecGroupTest.test_established_tcp_session_after_re_attachinging_sg)"
       devstack_localrc:
         NETWORK_API_EXTENSIONS: "{{ network_api_extensions | join(',') }}"
       devstack_local_conf: