diff --git a/requirements.txt b/requirements.txt
index 827b78a18..1d19a89ec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,12 +12,12 @@ gnocchiclient>=2.7.0 # Apache-2.0
 Jinja2!=2.9.0,!=2.9.1,!=2.9.2,!=2.9.3,!=2.9.4,>=2.8 # BSD License (3 clause)
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 keystonemiddleware>=4.12.0 # Apache-2.0
-mistral-lib>=0.1.0 # Apache-2.0
+mistral-lib>=0.2.0 # Apache-2.0
 networkx>=1.10 # BSD
 oslo.concurrency>=3.8.0 # Apache-2.0
 oslo.config>=3.22.0 # Apache-2.0
-oslo.db>=4.19.0 # Apache-2.0
-oslo.i18n>=2.1.0 # Apache-2.0
+oslo.db>=4.21.1 # Apache-2.0
+oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.messaging>=5.19.0 # Apache-2.0
 oslo.middleware>=3.10.0 # Apache-2.0
 oslo.policy>=1.17.0 # Apache-2.0