diff --git a/nose.gemspec b/nose.gemspec
index 87634d4a..c5efcc4c 100644
--- a/nose.gemspec
+++ b/nose.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'logging', '~> 2.2.0', '>= 2.2.0'
   s.add_dependency 'mipper', '~> 0.1.0'
   s.add_dependency 'parallel', '~> 1.20.1', '>= 1.11.0'
-  s.add_dependency 'parslet', '~> 1.8.0', '>= 1.8.0'
+  s.add_dependency 'parslet', '>= 1.8', '< 2.1'
   s.add_dependency 'pickup', '~> 0.0.11'
   s.add_dependency 'pry', '~> 0.13.1'
   s.add_dependency 'rake', '~> 12.3.2', '>= 12.0.0'