diff --git a/.travis.yml b/.travis.yml
index 1feee2d..62fe69f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ env:
   - FEATURES='serde-1'
 matrix:
   include:
-    - rust: 1.13.0
+    - rust: 1.20.0
     - rust: stable
       env:
         - NODEFAULT=1