diff --git a/tempest/cmd/config-generator.tempest.conf b/tempest/cmd/config-generator.tempest.conf
index 49ad62d..b8f16d9 100644
--- a/tempest/cmd/config-generator.tempest.conf
+++ b/tempest/cmd/config-generator.tempest.conf
@@ -3,5 +3,3 @@
 namespace = tempest.config
 namespace = oslo.concurrency
 namespace = oslo.log
-namespace = oslo.serialization
-namespace = oslo.utils