diff --git a/.ruby-version b/.ruby-version
index 005119b..7bf4b6a 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.4.1
+2.4.6
diff --git a/.travis.yml b/.travis.yml
index 23a0abe..f248eca 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,3 @@
 language: ruby
 rvm:
-  - 2.2.2
+  - 2.4.6