diff --git a/pact-support.gemspec b/pact-support.gemspec
index 0854aea..1731cdd 100644
--- a/pact-support.gemspec
+++ b/pact-support.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "diff-lcs", "~> 1.6"
   spec.add_runtime_dependency "expgen", "~> 0.1"
   spec.add_runtime_dependency 'string_pattern', '~> 2.0'
-  spec.add_runtime_dependency 'json', '~> 2.12.2'
+  spec.add_runtime_dependency 'json', '~> 2.12'
   spec.add_runtime_dependency 'logger', '< 2.0'
   spec.add_development_dependency "stringio", "~> 3"