diff --git a/requirements.txt b/requirements.txt
index d164c8fb..fcf6b957 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,5 +4,5 @@
 oslo.config>=4.6.0 # Apache-2.0
 oslo.log>=3.30.0 # Apache-2.0
 
-six>=1.9.0 # MIT
+six>=1.10.0 # MIT
 monasca-common>=1.4.0 # Apache-2.0
diff --git a/setup.cfg b/setup.cfg
index 611645b8..76702f1e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -36,7 +36,7 @@ influxdb =
 cassandra =
   cassandra-driver!=3.6.0,>=2.1.4 # Apache-2.0
 elasticsearch =
-  elasticsearch>=2.0.0,<=3.0.0 # Apache-2.0
+  elasticsearch<=3.0.0,>=2.0.0 # Apache-2.0
 
 [pbr]
 autodoc_index_modules = True