diff --git a/simphony_osp_simlammps/wrapper.py b/simphony_osp_simlammps/wrapper.py
index 7dfb717..c6fd16c 100755
--- a/simphony_osp_simlammps/wrapper.py
+++ b/simphony_osp_simlammps/wrapper.py
@@ -207,7 +207,7 @@ def _update_position_from_backend(
         position: OntologyIndividual,
         ontology_atom: Optional[OntologyIndividual] = None,
     ):
-        """Updates a given position object with the latest values in the engine.
+        """Update a given position object with the latest values in the engine.
 
         Args:
             position: position object to update.
diff --git a/tox.ini b/tox.ini
index 52614bf..2dcb191 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py37,py38,py39,py310
+envlist = py37,py38,py39,py310,py311
 
 [testenv]
 deps =