diff --git a/requirements.txt b/requirements.txt
index 6ae87994..ee2f7646 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ iso8601>=0.1.11 # MIT
 osc-lib>=1.5.1 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
-oslo.serialization>=1.10.0 # Apache-2.0
+oslo.serialization!=2.19.1,>=1.10.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0
 keystoneauth1>=2.21.0 # Apache-2.0
 python-swiftclient>=3.2.0 # Apache-2.0