diff --git a/publish.sh b/publish.sh
index 41e9cfb3b..2e52166ba 100755
--- a/publish.sh
+++ b/publish.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
 
 #python setup.py bdist_egg upload
-python setup.py sdist --formats=gztar,zip upload
+python setup.py sdist --formats=gztar,zip upload --sign
 # python setup.py bdist_wheel upload