diff --git a/datetime-fortran b/datetime-fortran
index a00e95f..f5310d9 160000
--- a/datetime-fortran
+++ b/datetime-fortran
@@ -1 +1 @@
-Subproject commit a00e95f4177113b2f9876307b3f8d70a1376ce53
+Subproject commit f5310d92bb41f36909d665bbc19869169b2276ac