diff --git a/README.md b/README.md
index b74fa92..6426c8b 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,8 @@ Generic Cross Platform Signal Handler.
 
 ### Swift
 * Swift Open Source `swift-DEVELOPMENT-SNAPSHOT-2016-05-09-a` toolchain (**Minimum REQUIRED for latest release**)
-* Swift Open Source `swift-DEVELOPMENT-SNAPSHOT-2016-05-31-a` toolchain (**Recommended**)
+* Swift Open Source `swift-DEVELOPMENT-SNAPSHOT-2016-05-31-a` toolchain *or*
+* Swift Open Source `swift-DEVELOPMENT-SNAPSHOT-2016-06-06-a` toolchain (**Recommended**)
 
 ### OS X