diff --git a/conf/base.config b/conf/base.config
index 2f0f97f..0c65574 100644
--- a/conf/base.config
+++ b/conf/base.config
@@ -27,7 +27,7 @@ process {
     // TODO nf-core: Customise requirements for specific processes.
     // See https://www.nextflow.io/docs/latest/config.html#config-process-selectors
     withLabel:process_low {
-        cpus   = { check_max( 4     * task.attempt, 'cpus'    ) }
+        cpus   = { check_max( 2     * task.attempt, 'cpus'    ) }
         memory = { check_max( 12.GB * task.attempt, 'memory'  ) }
         time   = { check_max( 4.h   * task.attempt, 'time'    ) }
     }