diff --git a/overlay.nix b/overlay.nix
index 589e811..1eedbfa 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -42,7 +42,7 @@ let
         '';
       });
       # Zotero does not have their own aarch64-linux build
-      zotero = final.callPackage ./packages/aarch64-linux/zotero.nix { };
+      zotero = optionalOverride prev.zotero (final.callPackage ./packages/aarch64-linux/zotero.nix { });
       # Typora for aarch64-linux only
       typora = optionalOverride
         (builtins.abort "no support for non-aarch64-linux")