diff --git a/libraries/SoftwareSerial b/libraries/SoftwareSerial
index 94b2388a47..d4b3c77b2f 160000
--- a/libraries/SoftwareSerial
+++ b/libraries/SoftwareSerial
@@ -1 +1 @@
-Subproject commit 94b2388a4752f2b165371313f4d942daebff6eee
+Subproject commit d4b3c77b2fa1c554b943d8dc2a571a6f5d709bc3