diff --git a/tasks.py b/tasks.py
index a6dd483..1e8474c 100644
--- a/tasks.py
+++ b/tasks.py
@@ -13,4 +13,5 @@ def release(c):
     """
     c.run("find . -name '*~' -delete")
     c.run('npm run build')
-    c.run('npm publish')
+    otp = c.run('otp npm').stdout.strip()
+    c.run('npm publish --otp {}'.format(otp))