Update app.py

app.py

@@ -122,7 +122,9 @@ if st.sidebar.button("Reset Chat"):
     st.session_state.chat_history = [{"role": "assistant", "content": "Hello! How can I assist you today?"}]
     st.session_state.response_ready = False
     st.session_state.follow_up = ""
-    st.experimental_rerun()
+    st.session_state.last_topic = ""
+    st.rerun()  # ✅ Correct method to reset the app in newer Streamlit versions
+
 
 # Custom Chat Styling
 st.markdown("""