diff --git a/README.md b/README.md
index 788a956..d72fd24 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ An example that use the Morgan algorithm to generate a fingerprint of the molecu
 import towhee
 
 towhee.dc(['Cc1ccc(cc1)S(=O)(=O)N']) \
-  .molecular_fingerprinting.rdkit() \
+  .molecular_fingerprinting() \
   .show()
 ```
 <img src="./result1.png" height="35px"/>
@@ -44,7 +44,7 @@ towhee.dc(['Cc1ccc(cc1)S(=O)(=O)N']) \
 import towhee
 
 towhee.dc['smiles'](['Cc1ccc(cc1)S(=O)(=O)N']) \
-  .molecular_fingerprinting.rdkit['smiles', 'fingerprint']() \
+  .molecular_fingerprinting['smiles', 'fingerprint']() \
   .show()
 ```
 <img src="./result2.png" height="75px"/>