diff --git a/requirements.txt b/requirements.txt
index e34297b65..996bd48ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ pbr>=0.6,!=0.7,<1.0
 argparse
 iso8601>=0.1.9
 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
 PrettyTable>=0.7,<0.8
 requests>=2.2.0,!=2.4.0