diff --git a/src/GCHP_GridComp/GEOSChem_GridComp/HEMCO/HEMCO b/src/GCHP_GridComp/GEOSChem_GridComp/HEMCO/HEMCO
index b9f721d2d..3bd40ad84 160000
--- a/src/GCHP_GridComp/GEOSChem_GridComp/HEMCO/HEMCO
+++ b/src/GCHP_GridComp/GEOSChem_GridComp/HEMCO/HEMCO
@@ -1 +1 @@
-Subproject commit b9f721d2d95575d4764a8bff6a5aba051b90662c
+Subproject commit 3bd40ad84c46c36107d83b5353e57ce279b593f0