diff --git a/app/errors/check_conclusion_not_allowed_error.rb b/app/errors/check_conclusion_not_allowed_error.rb
index b471cdf..1462d34 100644
--- a/app/errors/check_conclusion_not_allowed_error.rb
+++ b/app/errors/check_conclusion_not_allowed_error.rb
@@ -2,7 +2,7 @@
 
 class CheckConclusionNotAllowedError < StandardError
   def initialize(allowed_conclusions)
-    msg = "The conclusion of one or more checks were not allowed. Allowed conclusions are: "\
+    msg = "The conclusion of one or more checks were not allowed. Allowed conclusions are: " \
           "#{allowed_conclusions.join(", ")}. This can be configured with the 'allowed-conclusions' param."
     super(msg)
   end
diff --git a/app/services/application_service.rb b/app/services/application_service.rb
index 44262b0..48c328e 100644
--- a/app/services/application_service.rb
+++ b/app/services/application_service.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class ApplicationService
-  def self.call(*args, &block)
-    new(*args, &block).call
+  def self.call(...)
+    new(...).call
   end
 end
diff --git a/app/spec/services/github_checks_verifier_spec.rb b/app/spec/services/github_checks_verifier_spec.rb
index 7b81618..5037b31 100644
--- a/app/spec/services/github_checks_verifier_spec.rb
+++ b/app/spec/services/github_checks_verifier_spec.rb
@@ -98,7 +98,7 @@
       ]
       allow(service).to receive(:query_check_status).and_return all_checks
 
-      expected_msg = "The conclusion of one or more checks were not allowed. Allowed conclusions are: "\
+      expected_msg = "The conclusion of one or more checks were not allowed. Allowed conclusions are: " \
                      "success, skipped. This can be configured with the 'allowed-conclusions' param."
       expect {
         service.call