diff --git a/pve.gemspec b/pve.gemspec
index 7f35c90..ce0ac7e 100644
--- a/pve.gemspec
+++ b/pve.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |spec|
   # PVE-7 based on debian-11, so ruby 2.7 is default.
   # No support for ruby 2.5 anymore (PVE-6 based on debian-10)
   # Old behaviour will be droped.
-  spec.required_ruby_version = Gem::Requirement.new ">= 2.7"
+  spec.required_ruby_version = Gem::Requirement.new "~> 3.1"
 
   spec.metadata["homepage_uri"]    = spec.homepage
   spec.metadata["source_code_uri"] = spec.homepage