diff --git a/.circleci/config.yml b/.circleci/config.yml
index ca01623..9855ef7 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -79,6 +79,7 @@
     - check-package:
         name: check-package-pypy36
         image: pypy:3.6
+        python: pypy3
         requires:
           - package