diff --git a/xcconfig/common/NetNewsWire_mac_target_common.xcconfig b/xcconfig/common/NetNewsWire_mac_target_common.xcconfig
index 687bababd..14a117347 100644
--- a/xcconfig/common/NetNewsWire_mac_target_common.xcconfig
+++ b/xcconfig/common/NetNewsWire_mac_target_common.xcconfig
@@ -8,3 +8,4 @@ ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon
 COMBINE_HIDPI_IMAGES = YES
 MACOSX_DEPLOYMENT_TARGET = 14.0
 SDKROOT = macosx;
+SWIFT_STRICT_CONCURRENCY = complete