diff --git a/tbd_tests.gemspec b/tbd_tests.gemspec
index f650dfd..ef69650 100644
--- a/tbd_tests.gemspec
+++ b/tbd_tests.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |s|
   s.required_ruby_version    = [">= 2.5.0", "< 4"]
   s.metadata                 = {}
 
-  s.add_development_dependency "tbd",         "~> 3.6.0"
+  s.add_development_dependency "tbd",         "~> 3.6.1"
   s.add_development_dependency "json-schema", "~> 4"
   s.add_development_dependency "rake",        "~> 13.0"
   s.add_development_dependency "rspec",       "~> 3.11"