diff --git a/requirements.txt b/requirements.txt
index dbd3e87f..8d72b4d7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,6 @@
 -e .[socks]
+pytest-xdist
+pytest==3.1.0
+pytest-cov==2.5.1
+pytest-httpbin==0.0.7
+pytest-mock==1.6.01