diff --git a/openvpn-status-web.gemspec b/openvpn-status-web.gemspec
index 577d590..d218d34 100644
--- a/openvpn-status-web.gemspec
+++ b/openvpn-status-web.gemspec
@@ -41,5 +41,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rubocop', '~> 1.40.0'
   s.add_development_dependency 'rubocop-rake', '~> 0.6.0'
   s.add_development_dependency 'rubocop-rspec', '~> 2.16.0'
-  s.add_development_dependency 'solargraph', '~> 0.47.0'
+  s.add_development_dependency 'solargraph', '~> 0.48.0'
 end