diff --git a/packages/bookwyrm/package.nix b/packages/bookwyrm/package.nix
index 460a6a7..f65737c 100644
--- a/packages/bookwyrm/package.nix
+++ b/packages/bookwyrm/package.nix
@@ -39,6 +39,7 @@ mkDerivation {
 			celery
 			certifi
 			cffi
+			chardet
 			click
 			colorthief
 			cron-descriptor