diff --git a/README.md b/README.md
index c8df9415b38f08c296871efe359364dd3d179279..9d2ab24c80d8728ad62724582d020eb8ce3923f3 100644
--- a/README.md
+++ b/README.md
@@ -52,5 +52,5 @@ Runtime options include:
 
 - `python-2.7.13`
 - `python-3.6.1`
-- `pypy-5.7.0` (unsupported, experimental)
-- `pypy3-5.5.0` (unsupported, experimental)
+- `pypy-5.7.1` (unsupported, experimental)
+- `pypy3-5.5.1` (unsupported, experimental)