diff --git a/git-trend.gemspec b/git-trend.gemspec
index 38151c7..562776f 100644
--- a/git-trend.gemspec
+++ b/git-trend.gemspec
@@ -28,7 +28,7 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency "addressable", "~> 2.8"
   spec.add_dependency "mechanize",   ">= 2.8.5", "< 2.11.0"
-  spec.add_dependency "thor",        ">= 0.20.0", "< 1.4.0"
+  spec.add_dependency "thor",        ">= 0.20.0", "< 1.5.0"
 
   spec.metadata["rubygems_mfa_required"] = "true"
 end