diff --git a/.travis.yml b/.travis.yml
index b99574e..f4e9539 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@
         apt:
           sources:
             - ubuntu-toolchain-r-test
-            - deadsnakes/ppa
+            - deadsnakes
           packages:
             - g++-7
             - python3.7