Update app.py

app.py

@@ -23,7 +23,7 @@ DATA_FILE = os.path.join("data", DATA_FILENAME)
 file_name = 'paralist.json'
 
 # reading the json
-@st.cache
+@st.cache(allow_output_mutation=True)
 def read_dataset():
     repo = Repository( local_dir="data", clone_from=DATASET_REPO_URL, repo_type="dataset", use_auth_token= auth_token)
     with open('data/{}'.format(file_name), 'r', encoding="utf8") as json_file: