diff --git a/packages/bookwyrm/package.nix b/packages/bookwyrm/package.nix
index 1d4aae1..3d3188a 100644
--- a/packages/bookwyrm/package.nix
+++ b/packages/bookwyrm/package.nix
@@ -101,7 +101,7 @@ mkDerivation {
 		owner = "zedfrigg" ;
 		repo = "bookwyrm" ;
 		rev = "ba1f180c834e1b84d33e565abc3d95f772e2cdd8" ;
-		hash = "" ;
+		hash = "sha256-8e1+pfURTvzsWumRpeBZGDyD8UW1C98Vv9/1GqECLD4=" ;
 	} ;
 
 	dontPatch = true ;