diff --git a/notebooks/unit5/unit5.ipynb b/notebooks/unit5/unit5.ipynb
index e9f817a..cb9ec8b 100644
--- a/notebooks/unit5/unit5.ipynb
+++ b/notebooks/unit5/unit5.ipynb
@@ -403,7 +403,7 @@
         "    checkpoint_interval: 50000\n",
         "    max_steps: 200000\n",
         "    time_horizon: 64\n",
-        "    threaded: true\n",
+        "    threaded: false\n",
         "    hyperparameters:\n",
         "      learning_rate: 0.0003\n",
         "      learning_rate_schedule: linear\n",