diff --git a/Dockerfile b/Dockerfile
index 5634e57..bcc0f9a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,4 @@
 FROM python:3.11-slim
-
 WORKDIR /opt/app
 
 COPY ./requirements.txt /opt/app/requirements.txt
@@ -8,4 +7,5 @@ RUN pip install -r requirements.txt
 
 COPY . .
 
-CMD ["exec gunicorn main:app"]
\ No newline at end of file
+EXPOSE 80
+CMD ["gunicorn", "-b", "0.0.0.0:80", "main:app"]
diff --git a/main.py b/main.py
index 25359e3..4ee0105 100644
--- a/main.py
+++ b/main.py
@@ -1,5 +1,5 @@
-from flask import Flask, abort, render_template
-from langchain.llms import OpenAI
+from flask import Flask, abort, render_template, jsonify
+from langchain_openai import OpenAI
 from dotenv import load_dotenv
 
 load_dotenv()
@@ -14,9 +14,13 @@ def main():
 
 @app.route("/ask")
 def ask():
-    llm = OpenAI(temperature=0.7)
-    text = "Tell me a joke about artificial intelligence."
-    return llm(text)
+    try:
+        llm = OpenAI(temperature=0.7)
+        text = "Tell me a joke about artificial intelligence."
+        response = llm(text)
+        return response
+    except Exception as e:
+        return jsonify(error=str(e)), 500
 
 
 @app.route("/<path:any_path>")
diff --git a/requirements.txt b/requirements.txt
index a48e5e4..e33c70c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
-Flask
-gunicorn
-langchain
-openai
-python-dotenv
\ No newline at end of file
+Flask==3.0.3
+gunicorn==22.0.0
+langchain==0.2.6
+langchain-openai==0.1.10
+openai==1.35.3
+python-dotenv==1.0.1