diff --git a/requirements.txt b/requirements.txt
index b7b7664a7..a5a89678e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ oslo.messaging>=5.19.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 oslo.policy>=1.17.0 # Apache-2.0
 oslo.service>=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
 pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.0.0 # BSD
 PasteDeploy>=1.5.0 # MIT
 Werkzeug>=0.7 # BSD License
diff --git a/test-requirements.txt b/test-requirements.txt
index 2a38df00b..7655f9400 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -21,7 +21,7 @@ oslotest>=1.10.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
 oslo.config>=3.22.0 # Apache-2.0
 oslo.messaging>=5.19.0 # Apache-2.0
-oslo.i18n>=2.1.0 # Apache-2.0
+oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.policy>=1.17.0 # Apache-2.0
 pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.0.0 # BSD
 tempest-lib>=0.14.0 # Apache-2.0