diff --git a/modules/nf-core/untarfiles/environment.yml b/modules/nf-core/untarfiles/environment.yml
index be5a6da9d886..27cf158507ea 100644
--- a/modules/nf-core/untarfiles/environment.yml
+++ b/modules/nf-core/untarfiles/environment.yml
@@ -3,9 +3,8 @@ name: untarfiles
 channels:
   - conda-forge
   - bioconda
-  - defaults
 
 dependencies:
   - bioconda::grep=3.4
-  - conda-forge::sed=4.7
+  - conda-forge::sed=4.8
   - conda-forge::tar=1.34
diff --git a/modules/nf-core/untarfiles/main.nf b/modules/nf-core/untarfiles/main.nf
index de27e67cdd1c..c2b148dee3f8 100644
--- a/modules/nf-core/untarfiles/main.nf
+++ b/modules/nf-core/untarfiles/main.nf
@@ -4,8 +4,8 @@ process UNTARFILES {
 
     conda "${moduleDir}/environment.yml"
     container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
-        'https://depot.galaxyproject.org/singularity/ubuntu:20.04' :
-        'nf-core/ubuntu:20.04' }"
+        'oras://community.wave.seqera.io/library/grep_sed_tar:40b34489f8e82876' :
+        'community.wave.seqera.io/library/grep_sed_tar:16f6591cd62505b3' }"
 
     input:
     tuple val(meta), path(archive)
diff --git a/modules/nf-core/untarfiles/tests/main.nf.test.snap b/modules/nf-core/untarfiles/tests/main.nf.test.snap
index 366bc3fab709..e5a2abe80e4c 100644
--- a/modules/nf-core/untarfiles/tests/main.nf.test.snap
+++ b/modules/nf-core/untarfiles/tests/main.nf.test.snap
@@ -11,7 +11,7 @@
                     ]
                 ],
                 "1": [
-                    "versions.yml:md5,9027b256bc1fa1eee1e00805bec9a223"
+                    "versions.yml:md5,4414b00143ed6076881ba7c68ed8b6cf"
                 ],
                 "files": [
                     [
@@ -22,7 +22,7 @@
                     ]
                 ],
                 "versions": [
-                    "versions.yml:md5,9027b256bc1fa1eee1e00805bec9a223"
+                    "versions.yml:md5,4414b00143ed6076881ba7c68ed8b6cf"
                 ]
             }
         ],
@@ -30,7 +30,7 @@
             "nf-test": "0.8.4",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2024-08-28T15:53:24.857391"
+        "timestamp": "2024-08-29T12:22:11.239416"
     },
     "test-untarfiles": {
         "content": [
@@ -48,7 +48,7 @@
                     ]
                 ],
                 "1": [
-                    "versions.yml:md5,9027b256bc1fa1eee1e00805bec9a223"
+                    "versions.yml:md5,4414b00143ed6076881ba7c68ed8b6cf"
                 ],
                 "files": [
                     [
@@ -63,7 +63,7 @@
                     ]
                 ],
                 "versions": [
-                    "versions.yml:md5,9027b256bc1fa1eee1e00805bec9a223"
+                    "versions.yml:md5,4414b00143ed6076881ba7c68ed8b6cf"
                 ]
             }
         ],
@@ -71,7 +71,7 @@
             "nf-test": "0.8.4",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2024-08-28T15:52:57.207155"
+        "timestamp": "2024-08-29T12:21:44.153411"
     },
     "test-untarfiles-different-output-path": {
         "content": [
@@ -311,14 +311,14 @@
                 "s_1_1101.stats"
             ],
             [
-                "versions.yml:md5,9027b256bc1fa1eee1e00805bec9a223"
+                "versions.yml:md5,4414b00143ed6076881ba7c68ed8b6cf"
             ]
         ],
         "meta": {
             "nf-test": "0.8.4",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2024-08-28T16:01:51.751361"
+        "timestamp": "2024-08-29T12:22:01.056904"
     },
     "test-untarfiles-onlyfiles": {
         "content": [
@@ -332,7 +332,7 @@
                     ]
                 ],
                 "1": [
-                    "versions.yml:md5,9027b256bc1fa1eee1e00805bec9a223"
+                    "versions.yml:md5,4414b00143ed6076881ba7c68ed8b6cf"
                 ],
                 "files": [
                     [
@@ -343,7 +343,7 @@
                     ]
                 ],
                 "versions": [
-                    "versions.yml:md5,9027b256bc1fa1eee1e00805bec9a223"
+                    "versions.yml:md5,4414b00143ed6076881ba7c68ed8b6cf"
                 ]
             }
         ],
@@ -351,6 +351,6 @@
             "nf-test": "0.8.4",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2024-08-28T15:53:19.654349"
+        "timestamp": "2024-08-29T12:22:06.329486"
     }
 }
\ No newline at end of file