diff --git a/Package.swift b/Package.swift
index 9a564122..a95d4782 100644
--- a/Package.swift
+++ b/Package.swift
@@ -173,12 +173,10 @@ var cSettingsIO = cSettings
   awsCIoPlatformExcludes.append("source/s2n")
   cSettingsIO.append(.define("__APPLE__"))
   cSettingsIO.append(.define("AWS_ENABLE_DISPATCH_QUEUE"))
-  cSettingsIO.append(.define("AWS_USE_SECITEM", .when(platforms: [.iOS, .tvOS])))
-  cSettingsIO.append(.define("AWS_ENABLE_KQUEUE", .when(platforms: [.macOS])))
+  cSettingsIO.append(.define("AWS_USE_SECITEM"))
   swiftTestSettings.append(.define("__APPLE__"))
   swiftTestSettings.append(.define("AWS_ENABLE_DISPATCH_QUEUE"))
-  swiftTestSettings.append(.define("AWS_USE_SECITEM", .when(platforms: [.iOS, .tvOS])))
-  swiftTestSettings.append(.define("AWS_ENABLE_KQUEUE", .when(platforms: [.macOS])))
+  swiftTestSettings.append(.define("AWS_USE_SECITEM"))
 #endif
 
 //////////////////////////////////////////////////////////////////////
diff --git a/aws-common-runtime/aws-c-io b/aws-common-runtime/aws-c-io
index ba5cb6de..d9cd5fbf 160000
--- a/aws-common-runtime/aws-c-io
+++ b/aws-common-runtime/aws-c-io
@@ -1 +1 @@
-Subproject commit ba5cb6de2cf12bfb154f302f6dedddf81c0ce4cd
+Subproject commit d9cd5fbfb59797b9a2a700fe769e89772648b08c