diff --git a/goless/__init__.py b/goless/__init__.py
index ee6050e..27ad68f 100644
--- a/goless/__init__.py
+++ b/goless/__init__.py
@@ -22,7 +22,7 @@
 from .selecting import dcase, rcase, scase, select
 
 
-version_info = 0, 7, 1
+version_info = 0, 7, 2
 version = '.'.join([str(v) for v in version_info])
 
 __version__ = version
diff --git a/setup.py b/setup.py
index daa4713..b5686e1 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,6 @@
 from setuptools import setup
+import sys
+import warnings
 
 from goless import version, __author__, __email__, __url__, __license__
 
@@ -8,7 +10,16 @@
     # noinspection PyUnresolvedReferences
     import stackless
 except ImportError:
-    requires.append('gevent>=1.0')
+    # See https://github.com/rgalanakis/goless/issues/21
+    # for why we need this (waiting for new gevent version).
+    if sys.version_info[0] == 3:
+        warnings.warn(
+            'You will need to install gevent from GitHub to use goless with '
+            'gevent under Python3. Run something like '
+            '"pip install git+https://github.com/surfly/gevent.git#gevent-egg"'
+        )
+    else:
+        requires.append('gevent>=1.0')
 
 setup(
     name='goless',
diff --git a/tox.ini b/tox.ini
index 1881d0b..2c5fbbb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,25 +9,23 @@ deps =
     mock
     nose
 setenv =
-    GOLESS_BACKEND = gevent
+    GOLESS_BACKEND =
 
 [testenv:26gevent]
 basepython = python2.6
 deps =
     {[testenv]deps}
     unittest2
-    gevent
 
 [testenv:27gevent]
-deps =
-    {[testenv]deps}
-    gevent
 
 [testenv:pypygevent]
 basepython = pypy
 deps =
     {[testenv]deps}
     git+https://github.com/surfly/gevent.git#gevent-egg
+setenv =
+    GOLESS_BACKEND = gevent
 
 ; See https://github.com/rgalanakis/goless/issues/21
 ; for why we need this hackery (waiting for new gevent version).
@@ -36,8 +34,6 @@ basepython = python3.3
 commands =
     pip install git+https://github.com/surfly/gevent.git#gevent-egg
     nosetests ./tests
-setenv =
-    GOLESS_BACKEND =
 deps =
     {[testenv]deps}
     cython
@@ -48,8 +44,6 @@ basepython = python3.4
 commands =
     pip install git+https://github.com/surfly/gevent.git#gevent-egg
     nosetests ./tests
-setenv =
-    GOLESS_BACKEND =
 deps =
     {[testenv]deps}
     cython