diff --git a/lib/irb/irb.gemspec b/lib/irb/irb.gemspec
index f6a8d16413..06a6f2c971 100644
--- a/lib/irb/irb.gemspec
+++ b/lib/irb/irb.gemspec
@@ -36,5 +36,5 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = Gem::Requirement.new(">= 2.5")
 
-  spec.add_dependency "reline", ">= 0.2.8.pre.5"
+  spec.add_dependency "reline", ">= 0.2.8.pre.6"
 end