diff --git a/derailed_benchmarks.gemspec b/derailed_benchmarks.gemspec
index 358ac4d..370ad3f 100644
--- a/derailed_benchmarks.gemspec
+++ b/derailed_benchmarks.gemspec
@@ -29,13 +29,13 @@ Gem::Specification.new do |gem|
   gem.add_dependency "rack",            ">= 1"
   gem.add_dependency "rake",            "> 10", "< 14"
   gem.add_dependency "thor",            ">= 0.19", "< 2"
-  if RUBY_VERSION >= '3.0'
+  if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("3.0")
     gem.add_dependency "ruby-statistics", ">= 4.0.1"
   else
     gem.add_dependency "ruby-statistics", ">= 2.1"
   end
-  if RUBY_VERSION < "3.2"
-    gem.add_dependency "syntax_suggest", "~> 1.1.0"
+  if Gem::Version.new(RUBY_VERSION) < Gem::Version.new("3.2")
+    gem.add_dependency "syntax_suggest", ">= 1.1.0"
   end
   gem.add_dependency "mini_histogram",  ">= 0.3.0"
   gem.add_dependency "rack-test",       ">= 0"