diff --git a/requirements.txt b/requirements.txt
index 617c23524..ee49f0608 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ iso8601>=0.1.11 # MIT
 netaddr!=0.7.16,>=0.7.13 # BSD
 osc-lib>=1.5.1 # Apache-2.0
 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
 os-client-config>=1.27.0 # Apache-2.0
 keystoneauth1>=2.21.0 # Apache-2.0