diff --git a/tcp_tests/tests/system/test_mcp_update.py b/tcp_tests/tests/system/test_mcp_update.py
index c01c80f..5ec2627 100644
--- a/tcp_tests/tests/system/test_mcp_update.py
+++ b/tcp_tests/tests/system/test_mcp_update.py
@@ -226,11 +226,32 @@
     salt_actions.run_state("*", "saltutil.refresh_pillar")
 
 
+@pytest.fixture(scope='class')
+def switch_to_staging_updates_mirantis_repo(reclass_actions, salt_actions):
+    version_param = "parameters._param.updates_mirantis_version"
+    infra_yml = "cluster/*/infra/init.yml"
+
+    current_version = reclass_actions.get_key(version_param, infra_yml)
+    if current_version == 'staging':
+        LOG.info("updates.mirantis.com already set to 'staging', skipping")
+        return
+    if current_version is None:
+        LOG.info("updates.mirantis.com is not enabled, "
+                 "skipping /staging repo pillar")
+        return
+
+    LOG.info("Switch to updates.mirantis.com/staging repo")
+    reclass_actions.add_key(version_param, 'staging', infra_yml)
+
+    salt_actions.run_state("*", "saltutil.refresh_pillar")
+
+
 @pytest.mark.usefixtures("switch_to_proposed_pipelines",
                          "update_to_tag",
                          "wa_for_galera_clustercheck_password_prod35705",
                          "wa_for_alerta_password_prod35958",
-                         "wa_redis_server_version_3_prod36960")
+                         "wa_redis_server_version_3_prod36960",
+                         "switch_to_staging_updates_mirantis_repo")
 class TestUpdateMcpCluster(object):
     """
     Following the steps in