diff --git a/cfhighlander.gemspec b/cfhighlander.gemspec
index 0009a1d..93b2ac4 100644
--- a/cfhighlander.gemspec
+++ b/cfhighlander.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.executables << 'cfpublish'
 
   s.add_runtime_dependency 'highline', '>=1.7.10','<1.8'
-  s.add_runtime_dependency 'thor', '~>0.20', '<1'
+  s.add_runtime_dependency 'thor', '~>1.2', '<2'
   s.add_runtime_dependency 'cfndsl', '~> 1.3', '<2'
   s.add_runtime_dependency 'rubyzip', '>=2.0.0', '<3'
   s.add_runtime_dependency 'aws-sdk-core', '~> 3','<4'