diff --git a/invesalius/data/viewer_slice.py b/invesalius/data/viewer_slice.py
old mode 100755
new mode 100644
index 0b34ce0..0b34ce0
--- a/invesalius/data/viewer_slice.py
+++ b/invesalius/data/viewer_slice.py
diff --git a/invesalius/data/viewer_volume.py b/invesalius/data/viewer_volume.py
old mode 100755
new mode 100644
index 3de5335..3de5335
--- a/invesalius/data/viewer_volume.py
+++ b/invesalius/data/viewer_volume.py
diff --git a/invesalius/gui/widgets/gradient.py b/invesalius/gui/widgets/gradient.py
old mode 100755
new mode 100644
index fe246ae..fe246ae
--- a/invesalius/gui/widgets/gradient.py
+++ b/invesalius/gui/widgets/gradient.py
--
libgit2 0.21.2