diff --git a/fyt.gemspec b/fyt.gemspec
index c8b4bef..1596025 100644
--- a/fyt.gemspec
+++ b/fyt.gemspec
@@ -23,6 +23,6 @@ Gem::Specification.new do |s|
   s.homepage    = 'https://github.com/ChaosSteffen/fyt'
   s.license     = 'BSD-2-Clause'
   s.add_runtime_dependency 'aws-sdk-s3', '= 1.13.0'
-  s.add_runtime_dependency 'nokogiri', '= 1.8.5'
+  s.add_runtime_dependency 'nokogiri', '~> 1.13.0'
   s.add_runtime_dependency 'proxy_fetcher', '= 0.6.5'
 end