diff --git a/webpack/webpack.config.base.ts b/webpack/webpack.config.base.ts
index 1e1e6ed..05e2b97 100644
--- a/webpack/webpack.config.base.ts
+++ b/webpack/webpack.config.base.ts
@@ -45,6 +45,10 @@ const configBase: webpack.Configuration = {
     'react-dom/client',
     'papi-frontend',
     'papi-backend',
+    '@emotion/react',
+    '@emotion/styled',
+    '@mui/icons-material',
+    '@mui/material',
     '@sillsdev/scripture',
   ],
   module: {