diff --git a/requirements.txt b/requirements.txt
index 71d6b10c..63791580 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ netaddr>=0.7.12
 oslo.config>=1.6.0  # Apache-2.0
 oslo.db>=1.3.0  # 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
 paramiko>=1.13.0
 pbr>=0.6,!=0.7,<1.0