diff --git a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
index b54ad6df8..6ac253857 160000
--- a/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
+++ b/src/GCHP_GridComp/GEOSChem_GridComp/geos-chem
@@ -1 +1 @@
-Subproject commit b54ad6df874c162e349f3e56028687ca49824569
+Subproject commit 6ac2538576a79190d4984312fadac1a12a3ad3e9