diff --git a/modules/local/hicstuff/build_matrix.nf b/modules/local/hicstuff/build_matrix.nf
index f2db7783dffa008b84c5cf8f607bc9e1cdf3efa7..a7abfedefabec3410a1254c91fc597336e2453d0 100644
--- a/modules/local/hicstuff/build_matrix.nf
+++ b/modules/local/hicstuff/build_matrix.nf
@@ -1,6 +1,6 @@
 process BUILD_MATRIX {
     tag "$meta1.id"
-    label 'process_single'
+    label 'process_high'
 
     conda "conda-forge::python=3.9 conda-forge::biopython=1.80 conda-forge::numpy=1.22.3 conda-forge::matplotlib=3.6.3 conda-forge::pandas=1.5.3"
     container = "docker.io/lbmc/hicstuff:3.1.3"