diff --git a/app.py b/app.py
index a07a370..33abe94 100644
--- a/app.py
+++ b/app.py
@@ -20,7 +20,7 @@
 
 __major_version__ = "0"
 __minor_version__ = "2"
-__change_version__ = "3"
+__change_version__ = "4"
 __version__ = ".".join(
     (__major_version__, __minor_version__, __change_version__)
 )
diff --git a/apps/rgb_colourspace_chromatically_adapted_primaries.py b/apps/rgb_colourspace_chromatically_adapted_primaries.py
index 91e6750..6a24223 100644
--- a/apps/rgb_colourspace_chromatically_adapted_primaries.py
+++ b/apps/rgb_colourspace_chromatically_adapted_primaries.py
@@ -205,7 +205,7 @@ def _uid(id_):
         ),
         Div(className="col-2"),
     ],
-    Div(className="row"),
+    className="row",
 )
 """
 App layout, i.e. :class:`Div` class instance.
diff --git a/apps/rgb_colourspace_transformation_matrix.py b/apps/rgb_colourspace_transformation_matrix.py
index ef50404..ca5636a 100644
--- a/apps/rgb_colourspace_transformation_matrix.py
+++ b/apps/rgb_colourspace_transformation_matrix.py
@@ -217,7 +217,7 @@ def _uid(id_):
         ),
         Div(className="col-2"),
     ],
-    Div(className="row"),
+    className="row",
 )
 """
 App layout, i.e. :class:`Div` class instance.
diff --git a/pyproject.toml b/pyproject.toml
index 1d12ced..b6c3e92 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "colour-dash"
-version = "0.2.3"
+version = "0.2.4"
 description = "Various colour science Dash apps built on top of Colour"
 license = "BSD-3-Clause"
 authors = [ "Colour Developers <colour-developers@colour-science.org>" ]