diff --git a/Gemfile b/Gemfile
index af11034..4d510b6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ end
 group :development, :test do
   gem 'pry'
   gem 'resque-scheduler' # it is not neccessary plugin. But if it present - we should extend it.
-  gem 'rspec', '~> 3.0'
+  gem 'rspec', '~> 3.13'
   gem 'rspec-its' # its(:foo) syntax
   gem 'saharspec', '~> 0.0.7' # some syntactic sugar for RSpec
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 894e731..cf1fe2f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,96 +2,95 @@ PATH
   remote: .
   specs:
     resque-prioritize (0.1.0)
-      resque (~> 2.0.0)
+      resque (>= 2.0, < 2.7)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    ast (2.4.0)
-    base64 (0.2.0)
-    coderay (1.1.2)
-    concurrent-ruby (1.2.2)
-    diff-lcs (1.3)
-    et-orbi (1.2.7)
+    ast (2.4.2)
+    coderay (1.1.3)
+    concurrent-ruby (1.3.3)
+    diff-lcs (1.5.1)
+    et-orbi (1.2.11)
       tzinfo
-    fugit (1.8.1)
-      et-orbi (~> 1, >= 1.2.7)
+    fugit (1.11.0)
+      et-orbi (~> 1, >= 1.2.11)
       raabro (~> 1.4)
-    jaro_winkler (1.5.4)
-    method_source (0.9.2)
+    jaro_winkler (1.5.6)
+    method_source (1.1.0)
     mono_logger (1.1.2)
     multi_json (1.15.0)
-    mustermann (3.0.0)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
-    parallel (1.19.1)
-    parser (2.7.0.2)
-      ast (~> 2.4.0)
-    pry (0.12.2)
-      coderay (~> 1.1.0)
-      method_source (~> 0.9.0)
+    parallel (1.19.2)
+    parser (3.3.3.0)
+      ast (~> 2.4.1)
+      racc
+    pry (0.14.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     raabro (1.4.0)
-    rack (2.2.8)
-    rack-protection (3.2.0)
-      base64 (>= 0.1.0)
-      rack (~> 2.2, >= 2.2.4)
-    rainbow (3.0.0)
-    rake (13.0.1)
-    redis (4.1.3)
-    redis-namespace (1.7.0)
+    racc (1.5.2)
+    rack (2.2.9)
+    rack-protection (2.2.4)
+      rack
+    rainbow (3.1.1)
+    rake (13.2.1)
+    redis (4.4.0)
+    redis-namespace (1.6.0)
       redis (>= 3.0.4)
-    resque (2.0.0)
+    resque (2.6.0)
       mono_logger (~> 1.0)
       multi_json (~> 1.0)
       redis-namespace (~> 1.6)
       sinatra (>= 0.9.2)
-      vegas (~> 0.1.2)
-    resque-scheduler (4.4.0)
+    resque-scheduler (4.10.2)
       mono_logger (~> 1.0)
       redis (>= 3.3)
-      resque (>= 1.26)
-      rufus-scheduler (~> 3.2)
-    rspec (3.9.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
-    rspec-core (3.9.1)
-      rspec-support (~> 3.9.1)
-    rspec-expectations (3.9.1)
+      resque (>= 1.27)
+      rufus-scheduler (~> 3.2, != 3.3)
+    rexml (3.2.5)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
+      rspec-support (~> 3.13.0)
     rspec-its (1.3.0)
       rspec-core (>= 3.0.0)
       rspec-expectations (>= 3.0.0)
-    rspec-mocks (3.9.1)
+    rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-support (3.9.2)
-    rubocop (0.79.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    rubocop (0.81.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.7.0.1)
       rainbow (>= 2.2.2, < 4.0)
+      rexml
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 1.7)
-    rubocop-rspec (1.37.1)
+      unicode-display_width (>= 1.4.0, < 2.0)
+    rubocop-rspec (1.38.1)
       rubocop (>= 0.68.1)
-    ruby-progressbar (1.10.1)
+    ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
     rufus-scheduler (3.9.1)
       fugit (~> 1.1, >= 1.1.6)
     saharspec (0.0.10)
       ruby2_keywords
-    sinatra (3.2.0)
-      mustermann (~> 3.0)
-      rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.2.0)
+    sinatra (2.2.4)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.4)
       tilt (~> 2.0)
     tilt (2.3.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (1.6.1)
-    vegas (0.1.11)
-      rack (>= 1.0.0)
+    unicode-display_width (1.8.0)
 
 PLATFORMS
   ruby
@@ -99,10 +98,10 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 2.0)
   pry
-  rake (~> 13.0.1)
+  rake (~> 13.2.1)
   resque-prioritize!
   resque-scheduler
-  rspec (~> 3.0)
+  rspec (~> 3.13)
   rspec-its
   rubocop
   rubocop-rspec
diff --git a/resque-prioritize.gemspec b/resque-prioritize.gemspec
index c0c59a2..2d5de61 100644
--- a/resque-prioritize.gemspec
+++ b/resque-prioritize.gemspec
@@ -30,8 +30,8 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
 
   # The supported resque version is 2.0, though it needs to be urgently updated due to security reasons.
-  spec.add_dependency 'resque', '~> 2.0.0'
+  spec.add_dependency 'resque', '>= 2.0', '< 2.7'
 
   spec.add_development_dependency 'bundler', '~> 2.0'
-  spec.add_development_dependency 'rake', '~> 13.0.1'
+  spec.add_development_dependency 'rake', '~> 13.2.1'
 end