diff --git a/Readme.md b/Readme.md
index 7891ed7..d742b03 100644
--- a/Readme.md
+++ b/Readme.md
@@ -48,7 +48,7 @@ Runtime options include:
 
 - python-2.7.10
 - python-3.5.0
-- pypy-4.0.1 (unsupported, experimental)
+- pypy-2.6.1 (unsupported, experimental)
 - pypy3-2.4.0 (unsupported, experimental)
 
 Other [unsupported runtimes](https://github.com/heroku/heroku-buildpack-python/tree/master/builds/runtimes) are available as well.