diff --git a/swift/apple/PortalMock/Gemfile.lock b/swift/apple/PortalMock/Gemfile.lock
index 5ef51e3f6..e9faf88ed 100644
--- a/swift/apple/PortalMock/Gemfile.lock
+++ b/swift/apple/PortalMock/Gemfile.lock
@@ -5,7 +5,7 @@ GEM
     eventmachine (1.2.7)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    rack (2.2.4)
+    rack (2.2.7)
     rack-protection (3.0.4)
       rack
     ruby2_keywords (0.0.5)
@@ -23,6 +23,7 @@ GEM
 PLATFORMS
   arm64-darwin-21
   arm64-darwin-22
+  x86_64-linux
 
 DEPENDENCIES
   sinatra