diff --git a/containers/jug/requirements.txt b/containers/jug/requirements.txt
index 09e3f52d1d94956a6236e6734dc8e6343dd717ab..c3ab243522d8b66f5f12b35e6bc707d67b996745 100644
--- a/containers/jug/requirements.txt
+++ b/containers/jug/requirements.txt
@@ -15,3 +15,4 @@ seaborn
 stashcp
 uproot
 yapf
+mplhep