diff --git a/mache/machines/frontier.cfg b/mache/machines/frontier.cfg
index f4bea107..dcd2c8d9 100644
--- a/mache/machines/frontier.cfg
+++ b/mache/machines/frontier.cfg
@@ -41,7 +41,7 @@ system = slurm
 parallel_executable = srun
 
 # cores per node on the machine
-cores_per_node = 56
+cores_per_node = 64
 
 # account for running diagnostics jobs
 account = cli115