diff --git a/pkgs/selfprivacy-api/default.nix b/pkgs/selfprivacy-api/default.nix
index 16e3a4e..a41ff64 100644
--- a/pkgs/selfprivacy-api/default.nix
+++ b/pkgs/selfprivacy-api/default.nix
@@ -50,6 +50,7 @@ let
         huey
         gevent
         mnemonic
+        graphql-core
         (buildPythonPackage rec {
           pname = "strawberry-graphql";
           version = "0.114.5";