diff --git a/Gemfile b/Gemfile
index 055f43e5..29fa45dd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :concurrent_ruby_ext do
-  gem 'concurrent-ruby-ext', '~> 1.1.3'
+  gem 'concurrent-ruby-ext', '~> 1.2.0'
 end
 
 group :pry do
diff --git a/dynflow.gemspec b/dynflow.gemspec
index ae8ad845..ca7abe5c 100644
--- a/dynflow.gemspec
+++ b/dynflow.gemspec
@@ -23,8 +23,8 @@ Gem::Specification.new do |s|
   s.add_dependency "msgpack", '~> 1.3', '>= 1.3.3'
   s.add_dependency "apipie-params"
   s.add_dependency "algebrick", '~> 0.7.0'
-  s.add_dependency "concurrent-ruby", '~> 1.1.3'
-  s.add_dependency "concurrent-ruby-edge", '~> 0.6.0'
+  s.add_dependency "concurrent-ruby", '~> 1.2.0'
+  s.add_dependency "concurrent-ruby-edge", '~> 0.7.0'
   s.add_dependency "sequel", '>= 4.0.0'
 
   s.add_development_dependency "rake"