diff --git a/srcpkgs/python-traitlets/template b/srcpkgs/python-traitlets/template
index c589dbad79..6a67bbcc82 100644
--- a/srcpkgs/python-traitlets/template
+++ b/srcpkgs/python-traitlets/template
@@ -1,6 +1,6 @@
 # Template file for 'python-traitlets'
 pkgname=python-traitlets
-version=4.1.0
+version=4.2.1
 revision=1
 noarch=yes
 wrksrc="traitlets-${version}"
@@ -14,7 +14,7 @@ maintainer="Alessio Sergi <al3hex@gmail.com>"
 homepage="https://github.com/ipython/traitlets"
 license="3-clause-BSD"
 distfiles="${PYPI_SITE}/t/traitlets/traitlets-${version}.tar.gz"
-checksum=440e38dfa5d2a26c086d4b427cfb7aed17d0a2dca78bce90c33354da2592af5b
+checksum=76eba33c89723b8fc024f950cacaf5bf2ef37999642cc9a61f4e7c1ca5cf0ac0
 
 python3.4-traitlets_package() {
 	noarch=yes