diff --git a/components/zh_pcf8574 b/components/zh_pcf8574
index 1a8f471..b1c38b4 160000
--- a/components/zh_pcf8574
+++ b/components/zh_pcf8574
@@ -1 +1 @@
-Subproject commit 1a8f4711e8a1e2005860d8ffaee13bb37af73e58
+Subproject commit b1c38b4a96048e102719caad08edabd59a0dd499