1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index 9d158dfc..77bc903c 100644
--- a/setup.py
+++ b/setup.py
@@ -107,7 +107,7 @@ setup_args = dict(
     classifiers=classifier_list,
     url="https://bitbucket.org/ned/coveragepy",
 
-    python_requires=">=2.6, !=3.0.*, !=3.1.*, !=3.2.*",
+    python_requires=">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, <4",
 )
 
 # A replacement for the build_ext command which raises a single exception