diff --git a/labs/computing-experiment-metrics/computing_metrics_with_experiment_data.ipynb b/labs/computing-experiment-metrics/computing_metrics_with_experiment_data.ipynb
index ab6f0ca..76a411b 100644
--- a/labs/computing-experiment-metrics/computing_metrics_with_experiment_data.ipynb
+++ b/labs/computing-experiment-metrics/computing_metrics_with_experiment_data.ipynb
@@ -85,7 +85,7 @@
         "\n",
         "# This notebook requires an Optimizely API token.\n",
         "# The default token provided here is a read-only token associated with a demo Optimizely account\n",
-        "OPTIMIZELY_API_TOKEN = os.environ.get(\"OPTIMIZELY_API_TOKEN\", \"2:d6K8bPrDoTr_x4hiFCNVidcZk0YEPwcIHZk-IZb5sM3Q7RxRDafI\")\n",
+        "OPTIMIZELY_API_TOKEN = os.environ.get(\"OPTIMIZELY_API_TOKEN\", \"<personal_access_token>\")\n",
         "\n",
         "# Uncomment the following block to enable manual API token entry\n",
         "# if OPTIMIZELY_API_TOKEN is None:\n",
@@ -1113,9 +1113,9 @@
   ],
   "metadata": {
     "kernelspec": {
-      "name": "optimizelylabs",
+      "display_name": "Python 3 (Optimizely Labs)",
       "language": "python",
-      "display_name": "Python 3 (Optimizely Labs)"
+      "name": "optimizelylabs"
     },
     "language_info": {
       "codemirror_mode": {
diff --git a/labs/computing-experiment-metrics/enriching_decision_data.ipynb b/labs/computing-experiment-metrics/enriching_decision_data.ipynb
index 68fc805..9f7eec5 100644
--- a/labs/computing-experiment-metrics/enriching_decision_data.ipynb
+++ b/labs/computing-experiment-metrics/enriching_decision_data.ipynb
@@ -55,7 +55,7 @@
     "SKIP_WRITING_OUTPUT_DATA_TO_DISK = os.environ.get(\"SKIP_WRITING_OUTPUT_DATA_TO_DISK\", False)\n",
     "\n",
     "# This notebook requires an Optimizely API token.\n",
-    "OPTIMIZELY_API_TOKEN = os.environ.get(\"OPTIMIZELY_API_TOKEN\", \"2:d6K8bPrDoTr_x4hiFCNVidcZk0YEPwcIHZk-IZb5sM3Q7RxRDafI\")\n",
+    "OPTIMIZELY_API_TOKEN = os.environ.get(\"OPTIMIZELY_API_TOKEN\", \"<personal_access_token>\")\n",
     "\n",
     "# Default path for reading and writing analysis data\n",
     "OPTIMIZELY_DATA_DIR = os.environ.get(\"OPTIMIZELY_DATA_DIR\", \"./covid_test_data\")"
diff --git a/labs/computing-experiment-metrics/lab_env/opticon_demo.ipynb b/labs/computing-experiment-metrics/lab_env/opticon_demo.ipynb
index 0875260..a2695f0 100644
--- a/labs/computing-experiment-metrics/lab_env/opticon_demo.ipynb
+++ b/labs/computing-experiment-metrics/lab_env/opticon_demo.ipynb
@@ -62,7 +62,7 @@
    ],
    "source": [
     "%env OPTIMIZELY_DATA_DIR=./opticon_data\n",
-    "%env OPTIMIZELY_API_TOKEN=2:bqZXaNE24MFUlhyGFrKKY9DMA-G02xoou7fR0nQlQ3bT89uvjtF8"
+    "%env OPTIMIZELY_API_TOKEN=<personal_access_token>"
    ]
   },
   {