diff --git a/Gemfile b/Gemfile
index 162f2734..9cd3e00f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,5 +14,5 @@ gem "yard"
 gem "mutex_m"
 
 if RUBY_VERSION >= "2.6.0"
-  gem "standard", "~> 1.12.1"
+  gem "standard", "~> 1.42.0"
 end