diff --git a/base.cfg b/base.cfg
index ea3aacb..488264c 100644
--- a/base.cfg
+++ b/base.cfg
@@ -122,4 +122,4 @@ redturtle.volto =
 setuptools = 
 
 [sources]
-collective.volto.sitesettings = https://github.com/collective/collective.volto.sitesettings.git pushurl=git@github.com:collective/collective.volto.sitesettings.git
+collective.volto.sitesettings = git https://github.com/collective/collective.volto.sitesettings.git pushurl=git@github.com:collective/collective.volto.sitesettings.git
diff --git a/src/redturtle/volto/upgrades.py b/src/redturtle/volto/upgrades.py
index 7edff3c..dcf37cc 100644
--- a/src/redturtle/volto/upgrades.py
+++ b/src/redturtle/volto/upgrades.py
@@ -9,6 +9,7 @@
 from uuid import uuid4
 from zope.schema import getFields
 
+
 try:
     from plone.base.utils import get_installer
 except Exception:
diff --git a/src/redturtle/volto/upgrades.zcml b/src/redturtle/volto/upgrades.zcml
index b71bc85..1264a85 100644
--- a/src/redturtle/volto/upgrades.zcml
+++ b/src/redturtle/volto/upgrades.zcml
@@ -232,7 +232,7 @@
       destination="4305"
       handler=".upgrades.to_4305"
       />
-    <genericsetup:upgradeStep
+  <genericsetup:upgradeStep
       title="Install new dependency"
       description=""
       profile="redturtle.volto:default"