diff --git a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
index 3a052785a..685d2e7cd 160000
--- a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
+++ b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
@@ -1 +1 @@
-Subproject commit 3a052785a60fc32471241daeae40b14ca4cd7abb
+Subproject commit 685d2e7cd6899e0ea6b8352c557e7d6fcfd2c20e