diff --git a/urbanopt-geojson-gem.gemspec b/urbanopt-geojson-gem.gemspec
index 961431b..1a591ed 100644
--- a/urbanopt-geojson-gem.gemspec
+++ b/urbanopt-geojson-gem.gemspec
@@ -30,6 +30,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'simplecov', '~> 0.18.2'
   spec.add_development_dependency 'simplecov-lcov', '~> 0.8.0'
 
-  spec.add_runtime_dependency 'json-schema', '~> 2.7'
+  spec.add_runtime_dependency 'json-schema', '~> 2.8'
   spec.add_runtime_dependency 'urbanopt-core', '~> 0.11.0'
 end