diff --git a/requirements.txt b/requirements.txt
index dac712b9..62ebd6c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,5 @@
 oslo.config>=1.11.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.serialization>=1.4.0 # Apache-2.0
+oslo.utils>=1.6.0 # Apache-2.0
+six>=1.9.0