diff --git a/rswag-api/rswag-api.gemspec b/rswag-api/rswag-api.gemspec
index 3a14bb2..97e7a6a 100644
--- a/rswag-api/rswag-api.gemspec
+++ b/rswag-api/rswag-api.gemspec
@@ -13,5 +13,5 @@ Gem::Specification.new do |s|
 
   s.files = Dir["{lib}/**/*"] + ["MIT-LICENSE", "Rakefile"]
 
-  s.add_dependency 'railties', '>= 3.1', '< 6.1'
+  s.add_dependency 'railties', '>= 3.1', '< 7.0'
 end
diff --git a/rswag-specs/rswag-specs.gemspec b/rswag-specs/rswag-specs.gemspec
index e3ddaf3..ff46439 100644
--- a/rswag-specs/rswag-specs.gemspec
+++ b/rswag-specs/rswag-specs.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
 
   s.files = Dir["{lib}/**/*"] + ["MIT-LICENSE", "Rakefile" ]
 
-  s.add_dependency 'activesupport', '>= 3.1', '< 6.1'
-  s.add_dependency 'railties', '>= 3.1', '< 6.1'
+  s.add_dependency 'activesupport', '>= 3.1', '< 7.0'
+  s.add_dependency 'railties', '>= 3.1', '< 7.0'
   s.add_dependency 'json-schema', '~> 2.2'
 end
diff --git a/rswag-ui/rswag-ui.gemspec b/rswag-ui/rswag-ui.gemspec
index 1584470..d1ea0b1 100644
--- a/rswag-ui/rswag-ui.gemspec
+++ b/rswag-ui/rswag-ui.gemspec
@@ -13,6 +13,6 @@ Gem::Specification.new do |s|
 
   s.files = Dir.glob("{lib,node_modules}/**/*") + ["MIT-LICENSE", "Rakefile" ]
 
-  s.add_dependency 'actionpack', '>=3.1', '< 6.1'
-  s.add_dependency 'railties', '>= 3.1', '< 6.1'
+  s.add_dependency 'actionpack', '>=3.1', '< 7.0'
+  s.add_dependency 'railties', '>= 3.1', '< 7.0'
 end