diff --git a/meterstick_demo.ipynb b/meterstick_demo.ipynb
index 78d6690..a978b9c 100644
--- a/meterstick_demo.ipynb
+++ b/meterstick_demo.ipynb
@@ -14798,7 +14798,8 @@
         "###Bootstrap\n",
         "The output is similar to Jackknife. The different args are\n",
         "  - unit: If None, we bootstrap on rows. Otherwise we do a [block bootstrap](https://en.wikipedia.org/wiki/Bootstrapping_(statistics)#Block_bootstrap). The unique values in unit column will be used as the resampling buckets.\n",
-        "  - n_replicates: The number of resamples. Default to 10000, which is recommended in Tim Hesterberg's [What Teachers Should Know About the Bootstrap](https://amstat.tandfonline.com/doi/full/10.1080/00031305.2015.1089789). Here we use a smaller number for faster demonstration."
+        "  - n_replicates: The number of resamples. Default to 10000, which is recommended in Tim Hesterberg's [What Teachers Should Know About the Bootstrap](https://amstat.tandfonline.com/doi/full/10.1080/00031305.2015.1089789). Here we use a smaller number for faster demonstration.\n",
+        "  - ci_method: specifies the confidence interval method. Defaults to `'std'`, which computes bounds using standard error and normal approximation. If set to `'percentile'`, it computes the confidence interval using empirical percentiles from the bootstrap distribution. `confidence` must be provided when `ci_method` is set to `'percentile'`."
       ]
     },
     {