diff --git a/README.md b/README.md
index efaaa67..8e52cbb 100644
--- a/README.md
+++ b/README.md
@@ -103,7 +103,7 @@ fn main() {
         price: 125000,
     };
     // Insert the new laptop into the catalog. Note that at this time the product is in memory.
-    catalog.insert(new_laptop);
+    catalog.upsert(new_laptop);
     // Persist the changes in the catalog to the database.
     catalog.persist().unwrap();
     // Remove the SQLite database file.