diff --git a/gollum.gemspec b/gollum.gemspec
index 6f88f590..7c47e829 100644
--- a/gollum.gemspec
+++ b/gollum.gemspec
@@ -24,8 +24,8 @@ Gem::Specification.new do |s|
   s.add_dependency 'gollum-lib', '~> 5.1'
   s.add_dependency 'kramdown', '~> 2.3'
   s.add_dependency 'kramdown-parser-gfm', '~> 1.1.0'
-  s.add_dependency 'sinatra', '~> 2.0'
-  s.add_dependency 'sinatra-contrib', '~> 2.0'
+  s.add_dependency 'sinatra', '~> 3.0'
+  s.add_dependency 'sinatra-contrib', '~> 3.0'
   s.add_dependency 'mustache-sinatra', '>= 1.0.1', '< 2'
   s.add_dependency 'useragent', '~> 0.16.2'
   s.add_dependency 'gemojione', '~> 4.1'