diff --git a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
index d642999db..16ac9fc9c 160000
--- a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
+++ b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
@@ -1 +1 @@
-Subproject commit d642999db85326e350e18be9d7af03b287c47398
+Subproject commit 16ac9fc9ce9200f3739def6e6062a473d2a3be2e