diff --git a/requirements.txt b/requirements.txt
index cce3d96a9..2d9bd1a9c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ futurist!=0.15.0,>=0.11.0 # Apache-2.0
 oslo.config!=4.3.0,!=4.4.0,>=4.0.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 oslo.utils>=3.20.0 # 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.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 stevedore>=1.20.0 # Apache-2.0