diff --git a/docs/source/example_notebooks/lalonde_pandas_api.ipynb b/docs/source/example_notebooks/lalonde_pandas_api.ipynb
index 1b2a44cc29..07ca3293fe 100644
--- a/docs/source/example_notebooks/lalonde_pandas_api.ipynb
+++ b/docs/source/example_notebooks/lalonde_pandas_api.ipynb
@@ -93,8 +93,8 @@
     "                          outcome='re78',\n",
     "                          common_causes=['nodegr', 'black', 'hisp', 'age', 'educ', 'married'],\n",
     "                          variable_types={'age': 'c', 'educ':'c', 'black': 'd', 'hisp': 'd', \n",
-    "                                          'married': 'd', 'nodegr': 'd','re78': 'c', 'treat': 'b'},\n",
-    "                         proceed_when_unidentifiable=True)"
+    "                                          'married': 'd', 'nodegr': 'd','re78': 'c', 'treat': 'b'}\n",
+    "                         )"
    ]
   },
   {
@@ -265,8 +265,8 @@
     "                          outcome='re78',\n",
     "                          common_causes=['nodegr', 'black', 'hisp', 'age', 'educ', 'married'],\n",
     "                          variable_types={'age': 'c', 'educ':'c', 'black': 'd', 'hisp': 'd', \n",
-    "                                          'married': 'd', 'nodegr': 'd','re78': 'c', 'treat': 'b'},\n",
-    "                         proceed_when_unidentifiable=True)"
+    "                                          'married': 'd', 'nodegr': 'd','re78': 'c', 'treat': 'b'}\n",
+    "                         )"
    ]
   },
   {
@@ -304,7 +304,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -318,7 +318,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.5"
+   "version": "3.8.10"
   },
   "toc": {
    "base_numbering": 1,