diff --git a/requirements.txt b/requirements.txt
index 58a4d297e..c64439f3b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ eventlet!=0.18.3,<0.21.0,>=0.18.2 # MIT
 oslo.concurrency>=3.8.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
-oslo.i18n>=2.1.0 # Apache-2.0
+oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.privsep!=1.17.0,>=1.9.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0