diff --git a/Gemfile.lock b/Gemfile.lock
index 666755f..821cfc7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2021.0225)
     minitest (5.20.0)
-    minitest-parallel_fork (1.3.1)
+    minitest-parallel_fork (2.0.0)
       minitest (>= 5.15.0)
     netrc (0.11.0)
     public_suffix (5.0.3)
@@ -46,7 +46,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 2.2)
   minitest (~> 5.0)
-  minitest-parallel_fork (~> 1.3)
+  minitest-parallel_fork (~> 2.0)
   rake (~> 13.0)
   seatsio!
   webmock (~> 3.4, >= 3.4.2)
diff --git a/seatsio.gemspec b/seatsio.gemspec
index 6b0c024..504a736 100644
--- a/seatsio.gemspec
+++ b/seatsio.gemspec
@@ -26,5 +26,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "minitest", "~> 5.0"
   spec.add_development_dependency 'webmock', '~> 3.4', '>= 3.4.2'
-  spec.add_development_dependency 'minitest-parallel_fork', '~> 1.3'
+  spec.add_development_dependency 'minitest-parallel_fork', '~> 2.0'
 end