diff --git a/examples/tweets/tweets_assertions.ipynb b/examples/tweets/tweets_assertions.ipynb
index 91dffc47b..22c2db296 100644
--- a/examples/tweets/tweets_assertions.ipynb
+++ b/examples/tweets/tweets_assertions.ipynb
@@ -511,7 +511,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "teleprompter = BootstrapFewShotWithRandomSearch(metric = overall_metric, max_bootstrapped_demos=2, num_candidate_programs=6)\n",
+    "teleprompter = BootstrapFewShotWithRandomSearch(metric = overall_metric, max_bootstrapped_demos=2, num_candidate_programs=6, num_threads=1)\n",
     "compiled_tweeter_with_assertions = teleprompter.compile(student=tweeter_with_assertions, teacher = tweeter_with_assertions, trainset=trainset, valset=devset[:100])\n",
     "\n",
     "for metric in metrics:\n",