diff --git a/docs/source/nbsample/Refinance_Rate.ipynb b/docs/source/nbsample/Refinance_Rate.ipynb
index 185669f..c6131e4 100644
--- a/docs/source/nbsample/Refinance_Rate.ipynb
+++ b/docs/source/nbsample/Refinance_Rate.ipynb
@@ -469,7 +469,7 @@
     }
    ],
    "source": [
-    "r['bonds']['A1'].loc(\"2022-07-30\")"
+    "r['bonds']['A1'].loc[\"2022-06-20\":]"
    ]
   },
   {