diff --git a/.travis.yml b/.travis.yml
index 7c5be4b8ba5e3a6bb8421d614e73276bec427081..643573af3c4b41bc0500b9305360636a90bb7876 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,14 @@ jobs:
       python: "3.8"
       script:
         - pytest --cov=./ --cov-report=xml
+    - stage: test
+      python: "pypy3.5"
+      script:
+        - pytest --cov=./ --cov-report=xml
+    - stage: test
+      python: "3.5"
+      script:
+        - pytest --cov=./ --cov-report=xml
     - stage: test
       python: "3.6"
       script: