diff --git a/setup.cfg b/setup.cfg
index c1de302..f277862 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -70,7 +70,7 @@ install_requires =
     jedi>=0.16
     decorator
     pickleshare
-    traitlets>=4.2
+    traitlets>=5
     prompt_toolkit>=2.0.0,<3.1.0,!=3.0.0,!=3.0.1
     pygments
     backcall
@@ -82,8 +82,6 @@ install_requires =
 
 [options.packages.find]
 exclude =
-    deathrow
-    quarantine
     setupext
 
 [options.package_data]
diff --git a/setup.py b/setup.py
index 0ed7521..141b3d3 100644
--- a/setup.py
+++ b/setup.py
@@ -179,4 +179,5 @@ setup_args["extras_require"] = extras_require
 # Do the actual setup now
 #---------------------------------------------------------------------------
 
-setup(**setup_args)
+if __name__ == "__main__":
+    setup(**setup_args)