diff --git a/modules/local/check_paired_end.nf b/modules/local/check_paired_end.nf
index 109b6dc..5c0020b 100644
--- a/modules/local/check_paired_end.nf
+++ b/modules/local/check_paired_end.nf
@@ -4,8 +4,8 @@ process CHECK_IF_PAIRED_END {
 
     conda "${moduleDir}/environment.yml"
     container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
-        'https://depot.galaxyproject.org/singularity/samtools:1.19.2--h50ea8bc_0' :
-        'biocontainers/samtools:1.19.2--h50ea8bc_0' }"
+        'https://depot.galaxyproject.org/singularity/samtools:1.20--h50ea8bc_0' :
+        'biocontainers/samtools:1.20--h50ea8bc_0' }"
 
     input:
     tuple val(meta), path(input), path(index)
diff --git a/modules/local/environment.yml b/modules/local/environment.yml
index 90735d2..ac8e006 100644
--- a/modules/local/environment.yml
+++ b/modules/local/environment.yml
@@ -4,5 +4,5 @@ channels:
   - bioconda
   - defaults
 dependencies:
-  - bioconda::samtools=1.19.2
-  - bioconda::htslib=1.19.1
+  - bioconda::samtools=1.20
+  - bioconda::htslib=1.20