diff --git a/test/Concurrency/isolated_parameters.swift b/test/Concurrency/isolated_parameters.swift
index acc4712694429..57c7f8c4271f1 100644
--- a/test/Concurrency/isolated_parameters.swift
+++ b/test/Concurrency/isolated_parameters.swift
@@ -3,6 +3,7 @@
 
 // REQUIRES: concurrency
 // REQUIRES: asserts
+// REQUIRES: swift_swift_parser
 
 @available(SwiftStdlib 5.1, *)
 actor A {
diff --git a/test/Concurrency/isolation_macro.swift b/test/Concurrency/isolation_macro.swift
index 0b3e0b71d9372..9463da76e4947 100644
--- a/test/Concurrency/isolation_macro.swift
+++ b/test/Concurrency/isolation_macro.swift
@@ -2,6 +2,7 @@
 
 // REQUIRES: concurrency
 // REQUIRES: asserts
+// REQUIRES: swift_swift_parser
 
 // CHECK-LABEL: nonisolatedFunc()
 @available(SwiftStdlib 5.1, *)
diff --git a/test/Distributed/isolation_macro.swift b/test/Distributed/isolation_macro.swift
index b47e6a2b0d1d8..79104daafbea2 100644
--- a/test/Distributed/isolation_macro.swift
+++ b/test/Distributed/isolation_macro.swift
@@ -5,6 +5,7 @@
 // REQUIRES: concurrency
 // REQUIRES: asserts
 // REQUIRES: distributed
+// REQUIRES: swift_swift_parser
 
 import Distributed