diff --git a/.travis.yml b/.travis.yml
index 8e5dcce..5373313 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,4 +4,3 @@ rvm:
   - rbx-2
   - ruby-head
   - 2.1
-  - 2.0
diff --git a/README.md b/README.md
index b2f11bc..83d750f 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ DSL to write "recipes".
 Getting started
 ---------------
 
-### Installation (requires ruby and rubygems)
+### Installation (requires ruby ~> 2.1 and rubygems)
 
     $ gem install producer-core