Update app.py

app.py

@@ -39,7 +39,7 @@ filtering = st.sidebar.radio("What type of filtering would you like?",('Strict',
 
 extract_diseases = st.sidebar.checkbox("Extract Rare Diseases", value=False)
 
-@st.cache
+@st.cache(allow_output_mutation=True)
 def load_models():
     # load the tokenizer
     with open('tokenizer.pickle', 'rb') as handle: