diff --git a/requirements.txt b/requirements.txt
index 1392a9b8..fb7214ad 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,5 @@ six>=1.7.0
 python-keystoneclient>=0.11.1
 cliff>=1.7.0  # Apache-2.0
 oslo.i18n>=1.0.0  # Apache-2.0
-oslo.serialization>=1.0.0               # Apache-2.0
+oslo.serialization>=1.2.0               # Apache-2.0
 oslo.utils>=1.2.0                       # Apache-2.0