diff --git a/libphobos/testsuite/libphobos.phobos/phobos.exp b/libphobos/testsuite/libphobos.phobos/phobos.exp
index 55622698f13..3e74078f136 100644
--- a/libphobos/testsuite/libphobos.phobos/phobos.exp
+++ b/libphobos/testsuite/libphobos.phobos/phobos.exp
@@ -37,6 +37,8 @@ set libphobos_skip_tests {
     # Skip curl tests if library is not available
     { libphobos.phobos/etc/c/curl.d { ! libcurl_available } }
     { libphobos.phobos/std/net/curl.d { ! libcurl_available } }
+    # Skip concurrency.d test: SEGVs or hangs on macOS 13+ (PR d/111628).
+    { libphobos.phobos/std/concurrency.d { x86_64-apple-darwin2[2-9]* } }
 }
 
 # Initialize dg.
diff --git a/libphobos/testsuite/libphobos.phobos_shared/phobos_shared.exp b/libphobos/testsuite/libphobos.phobos_shared/phobos_shared.exp
index 2940a663a80..54acea78a68 100644
--- a/libphobos/testsuite/libphobos.phobos_shared/phobos_shared.exp
+++ b/libphobos/testsuite/libphobos.phobos_shared/phobos_shared.exp
@@ -37,6 +37,8 @@ set libphobos_skip_tests {
     # Skip curl tests if library is not available
     { libphobos.phobos_shared/etc/c/curl.d { ! libcurl_available } }
     { libphobos.phobos_shared/std/net/curl.d { ! libcurl_available } }
+    # Skip concurrency.d test: SEGVs or hangs on macOS 13+ (PR d/111628).
+    { libphobos.phobos_shared/std/concurrency.d { x86_64-apple-darwin2[2-9]* } }
 }
 
 # Initialize dg.