diff --git a/rtclib b/rtclib
index 101ac1f..28b0275 160000
--- a/rtclib
+++ b/rtclib
@@ -1 +1 @@
-Subproject commit 101ac1f2afadd3d1b1565e415b39852910bca0a8
+Subproject commit 28b02757cfd7a1d4216458dc7c3813da91291828