diff --git a/setup.py b/setup.py
index ca8a6d9..dd772c9 100644
--- a/setup.py
+++ b/setup.py
@@ -19,6 +19,7 @@
         "dash",
         "plotnine",
         "palettable",
+        "mmh3",
     ],
     python_requires=">=3.7",
     author_email="alex.sweeten@nih.gov",