diff --git a/Gemfile b/Gemfile
index 35c92e7..87e9998 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,6 @@
 source 'https://rubygems.org'
 
 group :development, :test do
-  gem 'bundler', '1.17.1'
   gem 'jekyll', '~> 3.9.0'
   gem 'jekyll-redirect-from', '~> 0.13.0'
   gem 'jekyll-sitemap', '~> 1.2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 476ce0a..f31fa0a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -73,7 +73,6 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  bundler (= 1.17.1)
   jekyll (~> 3.9.0)
   jekyll-last-modified-at (~> 1.0)
   jekyll-redirect-from (~> 0.13.0)
@@ -84,4 +83,4 @@ DEPENDENCIES
   redcarpet (~> 3.5.1)
 
 BUNDLED WITH
-   1.17.1
+  2.2.19
\ No newline at end of file