diff --git a/.travis.yml b/.travis.yml
index e32bd62..00a081f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ go:
   - "1.8"
   - "1.9"
   - "1.10"
+  - "1.11"
   - "tip"
 
 before_install:
diff --git a/README.md b/README.md
index e1daa95..65b5ada 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@
 - Unit tests available.
 - Language codes are automatically simplified from the form `en_UK` to `en` if the first isn't available.
 - Ready to use inside Go templates.
+- Objects are serializable to []byte to store them in cache.
 
 
 # License