diff --git a/tox.ini b/tox.ini
index cb24c5547..9cfea223a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,8 +18,8 @@ addopts = -p no:warnings --basetemp=_pytest_temp
 [basesetup]
 # Minimum pip and setuptools versions to fix system and travis issues.
 deps =
-    pip>=10
-    setuptools>=40
+    pip >= 10, <= 18.1
+    setuptools >= 40
 
 [basetests]
 deps =