diff --git a/tox.ini b/tox.ini
index 764ee3c..da39016 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,13 +4,7 @@ envlist = py25,py26,py27,py3
 [testenv]
 commands=py.test --junitxml=junit-{envname}.xml
 deps = pytest
-    
-[testenv:py25]
-simplejson = pytest simplejson
 
-[testenv:pypy]
-basepython=/usr/bin/pypy-c
-simplejson = pytest simplejson
 
 [testenv:py3]
 basepython=/usr/bin/python3