diff --git a/.ruby-version b/.ruby-version
index 5859406..530cdd9 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.2.3
+2.2.4
diff --git a/.travis.yml b/.travis.yml
index 97bce01..fbb7d41 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,7 @@ rvm:
   - 2.0
   - 2.1
   - 2.2
+  - 2.3
   - jruby-19mode
   - rbx-19mode
   - ruby-head