diff --git a/.ruby-version b/.ruby-version
index 6b4950e..95e3ba8 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.4
+2.5
diff --git a/Gemfile.lock b/Gemfile.lock
index 6008e22..af6e492 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -311,7 +311,7 @@ DEPENDENCIES
   webpacker
 
 RUBY VERSION
-   ruby 2.4.3p205
+   ruby 2.5.0p0
 
 BUNDLED WITH
    1.16.0