diff --git a/var/spack/repos/builtin/packages/py-nbformat/package.py b/var/spack/repos/builtin/packages/py-nbformat/package.py
index aa58e035583406007344c1dbbd7f3cbbf3b2224f..4bb931e6af8424f6fe4002a2032d2b17ca86ca2a 100644
--- a/var/spack/repos/builtin/packages/py-nbformat/package.py
+++ b/var/spack/repos/builtin/packages/py-nbformat/package.py
@@ -12,6 +12,7 @@ class PyNbformat(PythonPackage):
     homepage = "https://github.com/jupyter/nbformat"
     url      = "https://github.com/jupyter/nbformat/archive/4.1.0.tar.gz"
 
+    version('4.4.0', sha256='cfa7b2dbb81ab7a64492f09f2cb65d69a1d009fe5d6e18ee7bb94446b114ede3')
     version('4.1.0', sha256='751e77b58b66319be3977f86cc23a459763bded466a0113bbe39f137ec747872')
     version('4.0.1', sha256='5c46c21349f29379fa55bf19e4359afcd605fd4b5693a56807355874a2e87f78')
     version('4.0.0', sha256='f0dc6c6b47b9b0dcda1dfb02dd99c0818eb709571690a688d4e38a3129d2e95b')