diff --git a/utils/update_checkout/update-checkout-config.json b/utils/update_checkout/update-checkout-config.json
index c2fafa17d054b..0d7fbc0531cbb 100644
--- a/utils/update_checkout/update-checkout-config.json
+++ b/utils/update_checkout/update-checkout-config.json
@@ -181,6 +181,8 @@
                 "swift-stress-tester": "release/6.0",
                 "swift-corelibs-xctest": "release/6.0",
                 "swift-corelibs-foundation": "release/6.0",
+                "swift-foundation": "main",
+                "swift-foundation-icu": "main",
                 "swift-corelibs-libdispatch": "release/6.0",
                 "swift-integration-tests": "release/6.0",
                 "swift-xcode-playground-support": "release/6.0",