diff --git a/singularity/README.rst b/singularity/README.rst
index 69daf50bce89ee1c4530eea41b33cb74ff853810..b831f76e53ccd41c2156d53c4d7b0726785e3a34 100644
--- a/singularity/README.rst
+++ b/singularity/README.rst
@@ -38,13 +38,13 @@ To see the help for each individual app run:
 
 .. code-block:: bash
 
-    singularity help --app <APP NAME> <PATH TO OST IMAGE>
+    singularity run-help --app <APP NAME> <PATH TO OST IMAGE>
 
 Eg.:
 
 .. code-block:: bash
 
-    singularity help --app OST ost.img
+    singularity run-help --app OST ost.img
 
 
 Facilitating the usage
diff --git a/singularity/Singularity b/singularity/Singularity
index 125f213248958bfcacee34766140fb6c2f8cc3ee..5ebf34855fcdb3ecfd1d4276128394b0fe63a7c2 100644
--- a/singularity/Singularity
+++ b/singularity/Singularity
@@ -1,5 +1,5 @@
 BootStrap: docker
-From: registry.scicore.unibas.ch/schwede/openstructure:python3_test
+From: registry.scicore.unibas.ch/schwede/openstructure:python3_test2
 
 
 %post