diff --git a/.rubocop.yml b/.rubocop.yml
index 483b38bbe..147fbb070 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -446,6 +446,9 @@ Security/Eval:
 Security/JSONLoad:
   Enabled: true
 
+Security/Open:
+  Enabled: true
+
 Security/YAMLLoad:
   Enabled: true
 
diff --git a/lib/sms_api.rb b/lib/sms_api.rb
index 64a25e7e0..e3187b710 100644
--- a/lib/sms_api.rb
+++ b/lib/sms_api.rb
@@ -9,7 +9,7 @@ class SMSApi
   def url
     return "" unless end_point_available?
 
-    open(Rails.application.secrets.sms_end_point).base_uri.to_s
+    URI.parse(Rails.application.secrets.sms_end_point).to_s
   end
 
   def authorization