diff --git a/debug.gemspec b/debug.gemspec
index 0df52391a..e68c87294 100644
--- a/debug.gemspec
+++ b/debug.gemspec
@@ -28,5 +28,5 @@ Gem::Specification.new do |spec|
   spec.extensions    = ['ext/debug/extconf.rb']
 
   spec.add_dependency "irb", ">= 1.3.6" # for its color_printer class, which was added after 1.3
-  spec.add_dependency "reline", ">= 0.2.7"
+  spec.add_dependency "reline", ">= 0.3.1"
 end