diff --git a/modules/local/iqtree2.nf b/modules/local/iqtree2.nf
index 8ae7366..a839eb7 100644
--- a/modules/local/iqtree2.nf
+++ b/modules/local/iqtree2.nf
@@ -2,7 +2,7 @@ process iqtree2 {
   tag           "Phylogenetic analysis"
   label         "process_high"
   publishDir    params.outdir, mode: 'copy', saveAs: { filename -> filename.equals('versions.yml') ? null : filename }
-  container     'staphb/iqtree2:2.3.1'
+  container     'staphb/iqtree2:2.3.4'
   time          '24h'
   errorStrategy { task.attempt < 2 ? 'retry' : 'ignore'}