diff --git a/app/services/clusters/applications/create_service.rb b/app/services/clusters/applications/create_service.rb
index ae36da7b3dd..f723c42c049 100644
--- a/app/services/clusters/applications/create_service.rb
+++ b/app/services/clusters/applications/create_service.rb
@@ -10,8 +10,8 @@ module Clusters
       end
 
       def builder
-        cluster.method("application_#{application_name}").call ||
-          cluster.method("build_application_#{application_name}").call
+        cluster.public_send(:"application_#{application_name}") || # rubocop:disable GitlabSecurity/PublicSend
+          cluster.public_send(:"build_application_#{application_name}") # rubocop:disable GitlabSecurity/PublicSend
       end
     end
   end
diff --git a/app/services/clusters/applications/destroy_service.rb b/app/services/clusters/applications/destroy_service.rb
index fc74e1300a9..f3a4c4f754a 100644
--- a/app/services/clusters/applications/destroy_service.rb
+++ b/app/services/clusters/applications/destroy_service.rb
@@ -16,7 +16,7 @@ module Clusters
       private
 
       def builder
-        cluster.method("application_#{application_name}").call
+        cluster.public_send(:"application_#{application_name}") # rubocop:disable GitlabSecurity/PublicSend
       end
     end
   end
diff --git a/app/services/clusters/applications/update_service.rb b/app/services/clusters/applications/update_service.rb
index 5071c31839c..0fa937da865 100644
--- a/app/services/clusters/applications/update_service.rb
+++ b/app/services/clusters/applications/update_service.rb
@@ -10,7 +10,7 @@ module Clusters
       end
 
       def builder
-        cluster.method("application_#{application_name}").call
+        cluster.public_send(:"application_#{application_name}") # rubocop:disable GitlabSecurity/PublicSend
       end
     end
   end