diff --git a/lib/erb.gemspec b/lib/erb.gemspec
index e89a358f8a..2e7e981ff1 100644
--- a/lib/erb.gemspec
+++ b/lib/erb.gemspec
@@ -27,7 +27,9 @@ Gem::Specification.new do |spec|
   spec.executables   = ['erb']
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = ">= 2.7.0"
+  if RUBY_ENGINE != 'jruby'
+    spec.required_ruby_version = '>= 2.7.0'
+  end
 
   spec.add_dependency 'cgi', '>= 0.3.3'
 end