diff --git a/Gemfile.lock b/Gemfile.lock
index 2589b5bf32..0accc814f9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,8 +108,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     aggregate (0.2.2)
     allocation_tracer (0.6.3)
     amq-protocol (2.3.0)
@@ -303,7 +303,7 @@ GEM
     pry-byebug (3.9.0)
       byebug (~> 11.0)
       pry (~> 0.13.0)
-    public_suffix (4.0.3)
+    public_suffix (5.0.1)
     pusher (0.14.6)
       httpclient (~> 2.5)
       multi_json (~> 1.0)
@@ -325,7 +325,7 @@ GEM
     rb-fsevent (0.9.8)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rbtrace (0.4.12)
+    rbtrace (0.4.14)
       ffi (>= 1.0.6)
       msgpack (>= 0.4.3)
       optimist (>= 3.0.0)
diff --git a/spec/v3/services/installation/find_spec.rb b/spec/v3/services/installation/find_spec.rb
index 9462d0ba16..7db97f122f 100644
--- a/spec/v3/services/installation/find_spec.rb
+++ b/spec/v3/services/installation/find_spec.rb
@@ -62,6 +62,7 @@
           "@type"             => "allowance",
           "id"                => 1
         },
+        "custom_keys" => [],
         "allow_migration" => false,
         "recently_signed_up" => false,
         "secure_user_hash" => nil,
diff --git a/spec/v3/services/organization/find_spec.rb b/spec/v3/services/organization/find_spec.rb
index f93bb1a5b3..1c7af9d6f3 100644
--- a/spec/v3/services/organization/find_spec.rb
+++ b/spec/v3/services/organization/find_spec.rb
@@ -28,7 +28,8 @@
         "@type"             => "allowance",
         "@representation"   => "minimal",
         "id"                => org.id
-      }
+      },
+      "custom_keys"      => [],
     }}
   end
 
@@ -63,7 +64,8 @@
         "@type"             => "allowance",
         "@representation"   => "minimal",
         "id"                => org.id
-      }
+      },
+      "custom_keys"      => [],
     }}
   end
 
diff --git a/spec/v3/services/owner/find_spec.rb b/spec/v3/services/owner/find_spec.rb
index ffc531639d..fed9efe7ce 100644
--- a/spec/v3/services/owner/find_spec.rb
+++ b/spec/v3/services/owner/find_spec.rb
@@ -28,7 +28,8 @@
           "@type"             => "allowance",
           "@representation"   => "minimal",
           "id"                => org.id
-        }
+        },
+        "custom_keys"      => []
       }}
     end
 
@@ -54,7 +55,8 @@
           "@type"             => "allowance",
           "@representation"   => "minimal",
           "id"                => org.id
-        }
+        },
+        "custom_keys"      => []
       }}
     end
 
@@ -86,6 +88,7 @@
           "@representation"   => "minimal",
           "id"                => org.id
         },
+        "custom_keys"         => [],
         "repositories"        => [{
           "@type"             => "repository",
           "@href"             => "/v3/repo/#{repo.id}",
@@ -232,7 +235,8 @@
           "@type"             => "allowance",
           "@representation"   => "minimal",
           "id"                => org.id
-        }
+        },
+        "custom_keys"      => []
       }}
     end
 
@@ -263,6 +267,7 @@
           "@representation"   => "minimal",
           "id"                => org.id
         },
+        "custom_keys"    => [],
         "@warnings"      => [{
           "@type"        => "warning",
           "message"      => "query parameter organization.id not safelisted, ignored",
@@ -302,6 +307,7 @@
           "@representation"   => "minimal",
           "id"                => user.id
         },
+        "custom_keys"    => [],
         "recently_signed_up"=>false,
         "secure_user_hash" => nil,
         "ro_mode" => false,
@@ -334,6 +340,7 @@
           "@representation"   => "minimal",
           "id"                => user.id
         },
+        "custom_keys"    => [],
         "recently_signed_up"=>false,
         "secure_user_hash" => nil,
         "ro_mode" => false,
@@ -366,6 +373,7 @@
           "@representation"   => "minimal",
           "id"                => user.id
         },
+        "custom_keys"      => [],
         "recently_signed_up"=>false,
         "secure_user_hash" => nil,
         "ro_mode" => false,
@@ -402,6 +410,7 @@
           "@representation"   => "minimal",
           "id"                => user.id
         },
+        "custom_keys"      => [],
         "recently_signed_up"=>false,
         "secure_user_hash" => nil,
         "ro_mode"          => false,
diff --git a/spec/v3/services/user/find_spec.rb b/spec/v3/services/user/find_spec.rb
index 5639d24680..b544918ccf 100644
--- a/spec/v3/services/user/find_spec.rb
+++ b/spec/v3/services/user/find_spec.rb
@@ -42,6 +42,7 @@
         "@representation"       => "minimal",
         "id"                    => user.id
       },
+      "custom_keys" => [],
       "recently_signed_up"=>false,
       "secure_user_hash" => nil,
       "ro_mode" => false,
diff --git a/spec/v3/services/v2_subscription/executions_spec.rb b/spec/v3/services/v2_subscription/executions_spec.rb
index df5c5647ca..2a0d433435 100644
--- a/spec/v3/services/v2_subscription/executions_spec.rb
+++ b/spec/v3/services/v2_subscription/executions_spec.rb
@@ -175,6 +175,7 @@
                 "@representation"=>"minimal",
                 "id"=>1
               },
+              "custom_keys" => [],
               "email"=>"sven@fuchs.com",
               "is_syncing"=>nil,
               "synced_at"=>nil,