diff --git a/requirements.txt b/requirements.txt
index 174c7c8..3a32b69 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,10 +9,8 @@
 boto>=2.32.1
 paramiko>=1.13.0
 netaddr>=0.7.12
-python-glanceclient>=0.15.0
-python-cinderclient>=1.1.0
-python-heatclient>=0.3.0
 testrepository>=0.0.18
+pyOpenSSL>=0.11
 oslo.concurrency>=1.8.0,<1.9.0         # Apache-2.0
 oslo.config>=1.9.3,<1.10.0  # Apache-2.0
 oslo.i18n>=1.5.0,<1.6.0  # Apache-2.0
@@ -24,3 +22,4 @@
 fixtures>=0.3.14
 testscenarios>=0.4
 tempest-lib>=0.5.0
+PyYAML>=3.1.0