diff --git a/centos_build_layer.cfg b/centos_build_layer.cfg
new file mode 100644
index 00000000..c581999f
--- /dev/null
+++ b/centos_build_layer.cfg
@@ -0,0 +1 @@
+flock
diff --git a/test-requirements.txt b/test-requirements.txt
index 38840d6b..2f486674 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -25,3 +25,4 @@ sphinx!=1.3b1,<1.3,>=1.2.1 # BSD
 testtools>=1.4.0 # MIT
 # This also needs xvfb library installed on your OS
 xvfbwrapper>=0.1.3 #license: MIT
+pyOpenSSL>=0.14