diff --git a/components/mpas-ocean/cime_config/buildnml b/components/mpas-ocean/cime_config/buildnml
index 7b28be3b1f5a..5f25f3fd2686 100755
--- a/components/mpas-ocean/cime_config/buildnml
+++ b/components/mpas-ocean/cime_config/buildnml
@@ -353,7 +353,7 @@ def buildnml(case, caseroot, compname):
             data_ismf_file = 'prescribed_ismf_paolo2023.IcoswISC30E3r5.20240227.nc'
 
     elif ocn_grid == 'RRSwISC6to18E3r5':
-        decomp_date = '20240327'
+        decomp_date = '20240404'
         decomp_prefix = 'partitions/mpas-o.graph.info.'
         restoring_file = 'sss.PHC2_monthlyClimatology.RRSwISC6to18E3r5.20240327.nc'
         analysis_mask_file = 'RRSwISC6to18E3r5_mocBasinsAndTransects20210623.nc'
diff --git a/components/mpas-seaice/cime_config/buildnml b/components/mpas-seaice/cime_config/buildnml
index 97f3522219db..e6c992ead049 100755
--- a/components/mpas-seaice/cime_config/buildnml
+++ b/components/mpas-seaice/cime_config/buildnml
@@ -308,7 +308,7 @@ def buildnml(case, caseroot, compname):
                 grid_prefix = 'mpassi.IcoswISC30E3r5.rstFromG-chrysalis'
 
     elif ice_grid == 'RRSwISC6to18E3r5':
-        decomp_date = '20240327'
+        decomp_date = '20240404'
         decomp_prefix = 'partitions/mpas-seaice.graph.info.'
         grid_date = '20240327'
         grid_prefix = 'mpassi.RRSwISC6to18E3r5'