diff --git a/tox.ini b/tox.ini
index aab3c7cf6a..4fbfac941b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -44,6 +44,7 @@ deps =
     # NOTE: Add/remove as needed
     devdeps: numpy>=0.0.dev0
     devdeps: scipy>=0.0.dev0
+    devdeps: matplotlib>=0.0.dev0
     devdeps: pandas>=0.0.dev0
     devdeps: scikit-image>=0.0.dev0
     devdeps: astropy>=0.0.dev0