diff --git a/.travis.yml b/.travis.yml
index 9ce6d13..107674c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ rvm:
   - 2.2.10
   - 2.3.7
   - 2.4.4
+  - 2.5.1
   - ruby-head
   - rbx-2
 before_install:
@@ -41,6 +42,12 @@ matrix:
       gemfile: gemfiles/4.0.gemfile
     - rvm: 2.4.4
       gemfile: gemfiles/4.1.gemfile
+    - rvm: 2.5.1
+      gemfile: gemfiles/3.2.gemfile
+    - rvm: 2.5.1
+      gemfile: gemfiles/4.0.gemfile
+    - rvm: 2.5.1
+      gemfile: gemfiles/4.1.gemfile
     - rvm: ruby-head
       gemfile: gemfiles/3.2.gemfile
     - rvm: ruby-head