diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2249848..47b488e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Change log
 
+## unreleased
+
+### Changed
+* Change the gemspec to allow version 3 of unicode-display_width dependency
+  by Kieran Pilkington (@KieranP) 
+
 ## [v0.18.3] - 2024-11-10
 
 ### Fixed
diff --git a/tty-progressbar.gemspec b/tty-progressbar.gemspec
index 002597e..b44c159 100644
--- a/tty-progressbar.gemspec
+++ b/tty-progressbar.gemspec
@@ -31,7 +31,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "strings-ansi", "~> 0.2"
   spec.add_dependency "tty-cursor", "~> 0.7"
   spec.add_dependency "tty-screen", "~> 0.8"
-  spec.add_dependency "unicode-display_width", ">= 1.6", "< 3.0"
+  spec.add_dependency "unicode-display_width", ">= 1.6", "< 4.0"
 
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec", ">= 3.0"