diff --git a/Gemfile b/Gemfile
index 5a38c04..59f86ce 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,5 +14,8 @@ gem "rspec", "~> 3.0"
 gem "standard", "~> 1.3"
 
 group :development do
-  gem "steep", require: false
+  # FIXME: Relax this version when the stardand gem can cope with empty collection annotations
+  # https://github.com/soutaro/steep/pull/1338
+  # https://github.com/standardrb/standard/pull/656
+  gem "steep", "< 1.9.0", require: false
 end
diff --git a/lib/opensearch/cli.rb b/lib/opensearch/cli.rb
index 07ad239..8a3b3e9 100644
--- a/lib/opensearch/cli.rb
+++ b/lib/opensearch/cli.rb
@@ -2,6 +2,7 @@
 
 require "openssl"
 require "optparse"
+require "uri"
 
 module OpenSearch
   class CLI < OptionParser
@@ -12,7 +13,7 @@ def initialize(banner = nil, width = 32, indent = " " * 4, &block)
         host: "https://localhost:9200",
         transport_options: {ssl: {}}
       }
-      super(banner, width, indent) {}
+      super {}
 
       add_opensearch_options