Newer versions of standard only support Ruby => 3.0.0

Gemfile.lock

@@ -37,13 +37,13 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
-    rubocop (1.65.1)
+    rubocop (1.64.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 2.4, < 3.0)
+      regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
       rubocop-ast (>= 1.31.1, < 2.0)
       ruby-progressbar (~> 1.7)
@@ -54,10 +54,10 @@ GEM
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
     ruby-progressbar (1.13.0)
-    standard (1.40.0)
+    standard (1.37.0)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.65.0)
+      rubocop (~> 1.64.0)
       standard-custom (~> 1.0.0)
       standard-performance (~> 1.4)
     standard-custom (1.0.2)
@@ -66,21 +66,19 @@ GEM
     standard-performance (1.4.0)
       lint_roller (~> 1.1)
       rubocop-performance (~> 1.21.0)
-    standardrb (1.0.1)
-      standard
     unicode-display_width (2.5.0)
 
 PLATFORMS
-  aarch64-linux
   ruby
   x86_64-linux
+  aarch64-linux
 
 DEPENDENCIES
   bundler (~> 2.0)
   rake (~> 13.0)
   rqrcode!
   rspec (~> 3.5)
-  standardrb (~> 1.0)
+  standard (= 1.37)
 
 BUNDLED WITH
    2.4.10

rqrcode.gemspec

@@ -35,5 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "bundler", "~> 2.0"
   spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.5"
-  spec.add_development_dependency "standardrb", "~> 1.0"
+  # We need an explicit lower version as high versons
+  # require us to support Ruby >= 3.0.0
+  spec.add_development_dependency "standard", "1.37"
 end