diff --git a/requirements.txt b/requirements.txt
index 416adda..245c3b4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +1,3 @@
-ruamel.yaml==0.12.14
-requests
-logging
-clint==0.5.1
-CacheControl[filecache]==0.11.6
-lockfile
-Jinja2==2.8
-shortuuid==0.4.3
-jsonpickle
-ordereddict==1.1 ; python_version < '2.7'
-https://nexus.open-o.org/service/local/repositories/releases/content/org/openo/common-tosca/aria/aria/1.0.0/aria-1.0.0.zip
+ruamel.yaml<0.12.0,>=0.11.12
+requests<2.14.0,>=2.3.0
+apache-ariatosca==0.1.1