diff --git a/Gemfile b/Gemfile
index c4307a0..2e2dbf8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'jquery-rails'
 gem 'mailboxer'
 gem 'pg', '~> 0.15'
 gem 'puma', '~> 3.7'
-gem 'rake', '~> 11.1', '>= 11.1.2'
+gem 'rake', '~> 12.3'
 gem 'sass-rails', '~> 5.0'
 gem 'turbolinks'
 gem 'uglifier', '>= 1.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index f933d25..6b2c6f3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -182,7 +182,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (11.3.0)
+    rake (12.3.3)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -290,7 +290,7 @@ DEPENDENCIES
   puma (~> 3.7)
   rails-html-sanitizer (~> 1.0.4)
   rails_12factor
-  rake (~> 11.1, >= 11.1.2)
+  rake (~> 12.3)
   rspec-rails
   sass-rails (~> 5.0)
   shoulda-matchers