diff --git a/src/GEOS-Chem b/src/GEOS-Chem
index a1b784f..a863037 160000
--- a/src/GEOS-Chem
+++ b/src/GEOS-Chem
@@ -1 +1 @@
-Subproject commit a1b784fd770e78e1899334d9ce1b46b7e806ecaf
+Subproject commit a863037717e071a1294667e6c1fd0a9fbcf211a1