diff --git a/requirements.txt b/requirements.txt
index 30367ad..1792f68 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,4 @@ requests!=2.9.0,>=2.8.1 # Apache-2.0
 warlock<2,>=1.0.1 # Apache-2.0
 six>=1.9.0 # MIT
 oslo.utils>=3.4.0 # Apache-2.0
-oslo.i18n>=1.5.0 # Apache-2.0
+oslo.i18n>=2.1.0 # Apache-2.0