diff --git a/openvpn-status-web.gemspec b/openvpn-status-web.gemspec
index 3a31f8e..5a7430c 100644
--- a/openvpn-status-web.gemspec
+++ b/openvpn-status-web.gemspec
@@ -40,5 +40,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rubocop', '~> 1.16.0'
   s.add_development_dependency 'rubocop-rake', '~> 0.5.1'
   s.add_development_dependency 'rubocop-rspec', '~> 2.3.0'
-  s.add_development_dependency 'solargraph', ' ~> 0.40.0'
+  s.add_development_dependency 'solargraph', '~> 0.41.1'
 end