diff --git a/eclair.gemspec b/eclair.gemspec
index 5130af7..6ec7422 100644
--- a/eclair.gemspec
+++ b/eclair.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rake", "~> 13.0"
 
   spec.add_runtime_dependency "aws-sdk-ec2", "~> 1.18"
-  spec.add_runtime_dependency "curses", "~> 1.0"
+  spec.add_runtime_dependency "curses", "~> 1.0", '<= 1.4.2'
   spec.add_runtime_dependency "ruby-string-match-scorer", "~> 0.1"
   spec.add_runtime_dependency "pry", "~> 0.10"
   spec.add_runtime_dependency "json", "~> 2.1"