diff --git a/.travis.yml b/.travis.yml
index c128b7f..5afce87 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,9 +2,9 @@ language: ruby
 
 rvm:
   - 2.0.0
-  - 2.1
-  - 2.2
-  - 2.3
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
   - ruby-head
   - jruby
   - jruby-head
@@ -34,11 +34,11 @@ matrix:
   exclude:
     - rvm: 2.0.0
       gemfile: gemfiles/active_record_edge.gemfile
-    - rvm: 2.1
+    - rvm: 2.1.8
       gemfile: gemfiles/active_record_edge.gemfile
-    - rvm: 2.2
+    - rvm: 2.2.4
       gemfile: gemfiles/active_record_32.gemfile
-    - rvm: 2.3
+    - rvm: 2.3.0
       gemfile: gemfiles/active_record_32.gemfile
     - rvm: ruby-head
       gemfile: gemfiles/active_record_32.gemfile