diff --git a/components.yaml b/components.yaml
index 74e2b2e3..f415924d 100644
--- a/components.yaml
+++ b/components.yaml
@@ -56,7 +56,8 @@ MAPL:
 GEOSgcm_GridComp:
   local: ./src/Components/@GEOSgcm_GridComp
   remote: ../GEOSgcm_GridComp.git
-  tag: GCMv12-rc23
+  #tag: GCMv12-rc23
+  branch: feature/v12-remove-old-dyn
   sparse: ./config/GEOSgcm_GridComp.sparse
   develop: feature/sdrabenh/gcm_v12
 
@@ -239,7 +240,8 @@ umwm:
 GEOSgcm_App:
   local: ./src/Applications/@GEOSgcm_App
   remote: ../GEOSgcm_App.git
-  tag: GCMv12-rc23
+  #tag: GCMv12-rc23
+  branch: feature/v12-remove-old-dyn
   develop: feature/sdrabenh/gcm_v12
 
 UMD_Etc:
diff --git a/config/GEOSgcm_GridComp.sparse b/config/GEOSgcm_GridComp.sparse
index 47a65d70..d572aa03 100644
--- a/config/GEOSgcm_GridComp.sparse
+++ b/config/GEOSgcm_GridComp.sparse
@@ -1,5 +1,3 @@
 /*
 !/GEOSagcm_GridComp/GEOS_AgcmSimpleGridComp.F90
 !/GEOSagcm_GridComp/GEOShs_GridComp
-!/GEOSagcm_GridComp/GEOSsuperdyn_GridComp/ARIESg3_GridComp
-!/GEOSagcm_GridComp/GEOSsuperdyn_GridComp/FVdycore_GridComp