diff --git a/README.md b/README.md
index 8ffded6..837c974 100644
--- a/README.md
+++ b/README.md
@@ -45,11 +45,15 @@ schwab_client.get_tokens_manually()
 # now you should have access token & refresh token downloaded to your device
 
 #----------------
+ticker = '$SPX'
+# get option expirations:
+expiration_list = await schwab_client.get_option_expirations_async(underlying_symbol = ticker)
+
 # download SPX option chains
 from_date = 2024-07-01
 to_date = 2024-07-01
-ticker = '$SPX'
-asyncio.run(opt_chain_result = schwab_client.download_option_chain(ticker, from_date, to_date))
+
+opt_chain_result = await schwab_client.download_option_chain_async(ticker, from_date, to_date)
 
 # get call-put dataframe pairs by expiration
 opt_df_pairs = opt_chain_result.to_dataframe_pairs_by_expiration()
diff --git a/cschwabpy/SchwabAsyncClient.py b/cschwabpy/SchwabAsyncClient.py
index fb69df6..46aa890 100644
--- a/cschwabpy/SchwabAsyncClient.py
+++ b/cschwabpy/SchwabAsyncClient.py
@@ -117,7 +117,7 @@ async def get_option_expirations_async(
             if not self.__keep_client_alive:
                 await client.aclose()
 
-    async def download_option_chain(
+    async def download_option_chain_async(
         self,
         underlying_symbol: str,
         from_date: str,
diff --git a/pyproject.toml b/pyproject.toml
index a48688a..fbc47ef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cschwabpy"
-version = "0.0.4"
+version = "0.0.5"
 description = ""
 authors = ["Tony Wang <ivytony@gmail.com>"]
 readme = "README.md"
diff --git a/setup.py b/setup.py
index 0ea84d1..d3680a8 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name="CSchwabPy",
-    version="0.1.0",
+    version="0.0.5",
     description="Charles Schwab Stock & Option Trade API Client for Python.",
     long_description=long_description,
     long_description_content_type="text/markdown",
diff --git a/tests/test_models.py b/tests/test_models.py
index 26278de..e360798 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -72,7 +72,7 @@ async def test_download_option_chain(httpx_mock: HTTPXMock):
             tokens=mocked_token,
             http_client=client,
         )
-        opt_chain_result = await cschwab_client.download_option_chain(
+        opt_chain_result = await cschwab_client.download_option_chain_async(
             underlying_symbol=symbol, from_date="2025-01-03", to_date="2025-01-03"
         )
         assert opt_chain_result is not None