diff --git a/requirements.txt b/requirements.txt
index 02a5ac68..94f352c3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,12 +7,12 @@ pbr>=0.6,!=0.7,<1.0
 argparse
 iso8601>=0.1.9
 PrettyTable>=0.7,<0.8
-oslo.i18n>=1.5.0,<1.6.0                 # Apache-2.0
-oslo.serialization>=1.4.0,<1.5.0        # Apache-2.0
-oslo.utils>=1.4.0,<1.5.0                # Apache-2.0
+oslo.i18n>=1.5.0                        # Apache-2.0
+oslo.serialization>=1.4.0               # Apache-2.0
+oslo.utils>=1.4.0                       # Apache-2.0
 python-openstacksdk>=0.2.1
-python-keystoneclient>=0.11.1
-python-heatclient>=0.2.11
+python-keystoneclient>=1.3.0
+python-heatclient>=0.3.0
 PyYAML>=3.1.0
-requests>=2.2.0,!=2.4.0
+requests>=2.5.2
 six>=1.9.0