diff --git a/.ruby-version b/.ruby-version
index 73462a5..ec1cf33 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.5.1
+2.6.3
diff --git a/.tool-versions b/.tool-versions
index d87ed94..28c579c 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-ruby 2.5.1
+ruby 2.6.3
 nodejs 10.4.0
diff --git a/Gemfile b/Gemfile
index 169a4ea..f80c654 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-ruby "2.5.1"
+ruby "2.6.3"
 
 gem "dotenv-rails", groups: %i[development test]
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 4374563..4d98b38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -289,7 +289,7 @@ DEPENDENCIES
   webpacker
 
 RUBY VERSION
-   ruby 2.5.1p57
+   ruby 2.6.3p62
 
 BUNDLED WITH
-   1.16.4
+   1.17.2