diff --git a/.travis.yml b/.travis.yml
index 04478c1..767dcd3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ sudo: false
 addons:
   apt:
     sources:
-    - debian-sid
+    - debian-stretch
     packages:
     - shellcheck
 env: