diff --git a/requirements.txt b/requirements.txt
index 1caa53dc..665b47d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ six>=1.9.0 # MIT
 neutron-lib>=1.7.0 # Apache-2.0
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
-oslo.serialization>=1.10.0 # Apache-2.0
+oslo.serialization!=2.19.1,>=1.10.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0
 pyOpenSSL>=0.14 # Apache-2.0