diff --git a/elm.json b/elm.json
index 709c8727..96c36a74 100644
--- a/elm.json
+++ b/elm.json
@@ -40,6 +40,7 @@
             "j-panasiuk/elm-ionicons": "2.0.0",
             "justinmimbs/date": "4.0.1",
             "justinmimbs/time-extra": "1.1.1",
+            "ken-matsui/html-styled-extra": "1.0.1",
             "kuon/elm-hsluv": "3.0.2",
             "kuon/elm-string-normalize": "1.0.5",
             "lobanov/elm-taskport": "2.0.1",