diff --git a/openvpn-status-web.gemspec b/openvpn-status-web.gemspec
index 0972b09..5fd1ea2 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', '~> 1.18.1'
   s.add_development_dependency 'rubocop-rake', '~> 0.6.0'
   s.add_development_dependency 'rubocop-rspec', '~> 2.4.0'
-  s.add_development_dependency 'solargraph', '~> 0.42.1'
+  s.add_development_dependency 'solargraph', '~> 0.43.0'
 end