diff --git a/Gemfile b/Gemfile
index 5972c434d7e..515b42dc384 100644
--- a/Gemfile
+++ b/Gemfile
@@ -160,12 +160,12 @@ gem 'acts-as-taggable-on', '~> 5.0'
 
 # Background jobs
 gem 'sidekiq', '~> 5.2.1'
-gem 'sidekiq-cron', '~> 0.6.0'
+gem 'sidekiq-cron', '~> 1.0'
 gem 'redis-namespace', '~> 1.6.0'
 gem 'gitlab-sidekiq-fetcher', '~> 0.4.0', require: 'sidekiq-reliable-fetch'
 
 # Cron Parser
-gem 'rufus-scheduler', '~> 3.4'
+gem 'fugit', '~> 1.1'
 
 # HTTP requests
 gem 'httparty', '~> 0.13.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5098c6fb88e..8e48c4190f5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -185,7 +185,7 @@ GEM
     erubi (1.7.1)
     erubis (2.7.0)
     escape_utils (1.2.1)
-    et-orbi (1.0.3)
+    et-orbi (1.1.6)
       tzinfo
     eventmachine (1.2.7)
     excon (0.62.0)
@@ -258,6 +258,9 @@ GEM
     foreman (0.84.0)
       thor (~> 0.19.1)
     formatador (0.2.5)
+    fugit (1.1.6)
+      et-orbi (~> 1.1, >= 1.1.6)
+      raabro (~> 1.1)
     fuubar (2.2.0)
       rspec-core (~> 3.0)
       ruby-progressbar (~> 1.4)
@@ -606,6 +609,7 @@ GEM
       get_process_mem (~> 0.2)
       puma (>= 2.7, < 4)
     pyu-ruby-sasl (0.0.3.3)
+    raabro (1.1.6)
     rack (2.0.6)
     rack-accept (0.4.5)
       rack (>= 0.4)
@@ -775,8 +779,6 @@ GEM
     rubyntlm (0.6.2)
     rubypants (0.2.0)
     rubyzip (1.2.2)
-    rufus-scheduler (3.4.0)
-      et-orbi (~> 1.0)
     rugged (0.27.5)
     safe_yaml (1.0.4)
     sanitize (4.6.6)
@@ -820,8 +822,8 @@ GEM
       connection_pool (~> 2.2, >= 2.2.2)
       rack-protection (>= 1.5.0)
       redis (>= 3.3.5, < 5)
-    sidekiq-cron (0.6.0)
-      rufus-scheduler (>= 3.3.0)
+    sidekiq-cron (1.0.4)
+      fugit (~> 1.1)
       sidekiq (>= 4.2.1)
     signet (0.11.0)
       addressable (~> 2.3)
@@ -1003,6 +1005,7 @@ DEPENDENCIES
   fog-rackspace (~> 0.1.1)
   font-awesome-rails (~> 4.7)
   foreman (~> 0.84.0)
+  fugit (~> 1.1)
   fuubar (~> 2.2.0)
   gemojione (~> 3.3)
   gettext (~> 3.2.2)
@@ -1127,7 +1130,6 @@ DEPENDENCIES
   ruby-prof (~> 0.17.0)
   ruby-progressbar
   ruby_parser (~> 3.8)
-  rufus-scheduler (~> 3.4)
   rugged (~> 0.27)
   sanitize (~> 4.6)
   sass (~> 3.5)
@@ -1141,7 +1143,7 @@ DEPENDENCIES
   sham_rack (~> 1.3.6)
   shoulda-matchers (~> 3.1.2)
   sidekiq (~> 5.2.1)
-  sidekiq-cron (~> 0.6.0)
+  sidekiq-cron (~> 1.0)
   simple_po_parser (~> 1.1.2)
   simplecov (~> 0.14.0)
   slack-notifier (~> 1.5.1)