diff --git a/.travis.yml b/.travis.yml
index 63caaa5..98d1014 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ os:
 addons:
   apt:
     packages:
-      - python3.6
+      - python3.5
 
 before_install:
   # Save path to the git respository