diff --git a/components.yaml b/components.yaml
index 4fa50a73..23c1fabe 100644
--- a/components.yaml
+++ b/components.yaml
@@ -29,14 +29,14 @@ NCEP_Shared:
 GMAO_Shared:
   local: ./src/Shared/@GMAO_Shared
   remote: ../GMAO_Shared.git
-  tag: v2.1.4
+  tag: GCMv12-rc21
   sparse: ./config/GMAO_Shared.sparse
   develop: main
 
 GEOS_Util:
   local: ./src/Shared/@GMAO_Shared/@GEOS_Util
   remote: ../GEOS_Util.git
-  tag: v2.1.10
+  tag: GCMv12-rc21
   sparse: ./config/GEOS_Util.sparse
   develop: main
 
@@ -51,7 +51,7 @@ GMAO_perllib:
 MAPL:
   local: ./src/Shared/@MAPL
   remote: ../MAPL.git
-  tag: v2.63.1
+  tag: v2.64.0
   develop: develop
 
 GEOSldas_GridComp:
@@ -63,6 +63,6 @@ GEOSldas_GridComp:
 GEOSgcm_GridComp:
   local: ./src/Components/@GEOSgcm_GridComp
   remote: ../GEOSgcm_GridComp.git
-  branch: develop
+  branch: GCMv12-rc21
   sparse: ./config/GEOSgcm_GridComp_ldas.sparse
   develop: develop