diff --git a/requirements.txt b/requirements.txt
index 8d72b4d7..47c4fe27 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +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
+pytest
+pytest-cov
+pytest-httpbin
+pytest-mock