diff --git a/.travis.yml b/.travis.yml
index f6d4765..b8e91a9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: go
 
 go:
-  - 1.8
-  - 1.9
-  - 1.10
-  - tip
+  - "1.8"
+  - "1.9"
+  - "1.10"
+  - "tip"