diff --git a/.travis.yml b/.travis.yml
index 6142b24..2fd8a54 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: go
 go:
-  - 1.9
-  - 1.10
+  - "1.9"
+  - "1.10"
   - master
 sudo: required
 group: deprecated-2017Q2