diff --git a/Sources/InstrumentationBaggage/Baggage.swift b/Sources/InstrumentationBaggage/Baggage.swift
index 83889a3..267e56a 100644
--- a/Sources/InstrumentationBaggage/Baggage.swift
+++ b/Sources/InstrumentationBaggage/Baggage.swift
@@ -224,8 +224,8 @@ extension Baggage {
 
 // MARK: - Propagating Baggage
 
-#if swift(>=5.5)
-@available(macOS 12.0, iOS 15.0, watchOS 8.0, tvOS 15.0, *)
+#if swift(>=5.5) && canImport(_Concurrency)
+@available(macOS 10.15, iOS 13.0, watchOS 6.0, tvOS 13.0, *)
 extension Baggage {
     /// A `Baggage` automatically propagated through task-local storage. This API enables binding a top-level `Baggage` and passing it
     /// implicitly to any child tasks when using structured concurrency.
diff --git a/Tests/InstrumentationBaggageTests/BaggageTests.swift b/Tests/InstrumentationBaggageTests/BaggageTests.swift
index ef8ce31..835bfa3 100644
--- a/Tests/InstrumentationBaggageTests/BaggageTests.swift
+++ b/Tests/InstrumentationBaggageTests/BaggageTests.swift
@@ -63,8 +63,8 @@ final class BaggageTests: XCTestCase {
     }
 
     func test_automaticPropagationThroughTaskLocal() throws {
-        #if swift(>=5.5)
-        guard #available(macOS 12, iOS 15, tvOS 15, watchOS 8, *) else {
+        #if swift(>=5.5) && canImport(_Concurrency)
+        guard #available(macOS 10.15, iOS 13.0, watchOS 6.0, tvOS 13.0, *) else {
             throw XCTSkip("Task locals are not supported on this platform.")
         }