diff --git a/README.md b/README.md
index d72fd24..93e84c8 100644
--- a/README.md
+++ b/README.md
@@ -18,13 +18,6 @@ This operator uses [RDKit](https://www.rdkit.org/docs/index.html) to generate th
 
 ## Code Example
 
-> Before running the following code, you need to install rdkit, refer to https://www.rdkit.org/docs/Install.html.
->
-> ```
-> # install rdkit with conda
-> $ conda install -c conda-forge rdkit
-> ```
-
 An example that use the Morgan algorithm to generate a fingerprint of the molecular formula 'Cc1ccc(cc1)S(=O)(=O)N'.
 
  *Write the pipeline in simplified style:*
diff --git a/requirements.txt b/requirements.txt
index e69de29..090c081 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -0,0 +1 @@
+rdkit-pypi