diff --git a/trmnl-api.gemspec b/trmnl-api.gemspec
index 823dd37..c3f7380 100644
--- a/trmnl-api.gemspec
+++ b/trmnl-api.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
   spec.signing_key = Gem.default_key_path
   spec.cert_chain = [Gem.default_cert_path]
 
-  spec.required_ruby_version = "~> 3.4"
+  spec.required_ruby_version = ">= 3.4"
 
   spec.add_dependency "cogger", "~> 1.4"
   spec.add_dependency "containable", "~> 1.2"