diff --git a/nf_core/pipeline-template/conf/test.config b/nf_core/pipeline-template/conf/test.config
index 0f1d974101..bea6f670d0 100644
--- a/nf_core/pipeline-template/conf/test.config
+++ b/nf_core/pipeline-template/conf/test.config
@@ -13,7 +13,7 @@
 process {
     resourceLimits = [
         cpus: 4,
-        memory: '16.GB',
+        memory: '15.GB',
         time: '1.h'
     ]
 }