diff --git a/.ruby-version b/.ruby-version
index 59aa62c1f..e30309f73 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.4.5
+2.4.7
diff --git a/.travis.yml b/.travis.yml
index 053699a2e..d92f21450 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,7 @@
 language: ruby
+rvm:
+  - 2.4
+  - 2.5
 cache: bundler
 env:
   - DB=postgresql