diff --git a/packages/default.nix b/packages/default.nix
index ce16870..fe84da9 100644
--- a/packages/default.nix
+++ b/packages/default.nix
@@ -1 +1,8 @@
-final: prev: { }
+final: prev: {
+  python3 = prev.python3.override {
+    packageOverrides = python-final: python-prev: {
+      # spsdk tests fail with timeout on old laptop thinknix
+      spsdk = python-prev.spsdk.overridePythonAttrs { doCheck = false; };
+    };
+  };
+}