diff --git a/requirements.txt b/requirements.txt
index 742e4ffd8..f1cf3e5ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,6 @@ Babel!=2.4.0,>=2.3.4 # BSD
 eventlet!=0.18.3,!=0.20.1,<0.21.0,>=0.18.2 # MIT
 oslo.concurrency>=3.20.0 # Apache-2.0
 oslo.log>=3.30.0 # Apache-2.0
-oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.privsep>=1.23.0 # Apache-2.0
 oslo.service!=1.28.1,>=1.24.0 # Apache-2.0