diff --git a/requirements.txt b/requirements.txt
index 1bbe577db..2ccb705c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ pecan>=0.8.0
 posix_ipc
 oslo.messaging>=1.4.0,!=1.5.0
 oslo.middleware>=0.3.0                  # 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
 pysnmp>=4.2.1,<5.0.0
 python-ceilometerclient>=1.0.6