Updated from global requirements
Change-Id: Icf0e822fcb1dc958d11dd818153a53b63a66cbc9
diff --git a/requirements.txt b/requirements.txt
index 259a4cf..b7ebf8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@
oslo.concurrency>=3.8.0 # 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.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
six>=1.9.0 # MIT
fixtures>=3.0.0 # Apache-2.0/BSD