diff --git a/.travis.yml b/.travis.yml
index a4aac1d..51bbde4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,6 +11,7 @@ gemfile:
   - gemfiles/Gemfile-activemodel-4.2.x
   - gemfiles/Gemfile-activemodel-5.0.x
   - gemfiles/Gemfile-activemodel-5.1.x
+  - gemfiles/Gemfile-activemodel-5.2.x
 matrix:
   exclude:
     - rvm: 2.4.4
diff --git a/gemfiles/Gemfile-activemodel-5.2.x b/gemfiles/Gemfile-activemodel-5.2.x
new file mode 100644
index 0000000..ab961a7
--- /dev/null
+++ b/gemfiles/Gemfile-activemodel-5.2.x
@@ -0,0 +1,5 @@
+source 'https://rubygems.org'
+
+gemspec path: '..'
+
+gem 'activemodel', '~> 5.2.0'