diff --git a/var/spack/repos/builtin/packages/py-matplotlib/package.py b/var/spack/repos/builtin/packages/py-matplotlib/package.py
index b7f1923f9e..f6563c9ce4 100644
--- a/var/spack/repos/builtin/packages/py-matplotlib/package.py
+++ b/var/spack/repos/builtin/packages/py-matplotlib/package.py
@@ -24,6 +24,7 @@ class PyMatplotlib(PythonPackage):
         'matplotlib.testing.jpl_units', 'pylab'
     ]
 
+    version('3.3.4', sha256='3e477db76c22929e4c6876c44f88d790aacdf3c3f8f3a90cb1975c0bf37825b0')
     version('3.3.3', sha256='b1b60c6476c4cfe9e5cf8ab0d3127476fd3d5f05de0f343a452badaad0e4bdec')
     version('3.3.2', sha256='3d2edbf59367f03cd9daf42939ca06383a7d7803e3993eb5ff1bee8e8a3fbb6b')
     version('3.3.1', sha256='87f53bcce90772f942c2db56736788b39332d552461a5cb13f05ff45c1680f0e')