diff --git a/release.sh b/release.sh
index 4384c685..21264f24 100755
--- a/release.sh
+++ b/release.sh
@@ -12,6 +12,7 @@ if [ "$#" -ne 1 ] ; then
 fi
 
 # install dependencies
+rm -rf node_modules
 npm install
 
 # set version
@@ -30,4 +31,4 @@ git push
 git push --tag
 
 # publish to npm
-npm publish
+npm publish --tag old-version