diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2ba8898d..821d1b41 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -48,6 +48,12 @@ jobs:
       - image: circleci/python:3.6
         environment:
           TOXENV: py36-core
+  pypy3-core:
+    <<: *common
+    docker:
+      - image: pypy
+        environment:
+          TOXENV: pypy3-core
 workflows:
   version: 2
   test:
@@ -56,3 +62,4 @@ workflows:
       - lint
       - py35-core
       - py36-core
+      - pypy3-core