diff --git a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
index b288af156..1ffb7e8a3 160000
--- a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
+++ b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
@@ -1 +1 @@
-Subproject commit b288af1563a9a49a154a93bdd0f88be1f58f3f2f
+Subproject commit 1ffb7e8a3b265e11f09b405649e30d7f0a457199