diff --git a/package.json b/package.json
index 824e761b..5ec57c86 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@actions/core": "^1.10.0",
     "@octokit/rest": "^19.0.7",
     "minimatch": "^7.4.2",
-    "openai": "^3.2.1",
+    "openai": "^4.20.1",
     "parse-diff": "^0.11.1",
     "ts-node": "^10.9.1"
   },
diff --git a/src/main.ts b/src/main.ts
index 474d6981..3f55d58b 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,6 +1,6 @@
 import { readFileSync } from "fs";
 import * as core from "@actions/core";
-import { Configuration, OpenAIApi } from "openai";
+import OpenAI from "openai";
 import { Octokit } from "@octokit/rest";
 import parseDiff, { Chunk, File } from "parse-diff";
 import minimatch from "minimatch";
@@ -11,12 +11,10 @@ const OPENAI_API_MODEL: string = core.getInput("OPENAI_API_MODEL");
 
 const octokit = new Octokit({ auth: GITHUB_TOKEN });
 
-const configuration = new Configuration({
+const openai = new OpenAI({
   apiKey: OPENAI_API_KEY,
 });
 
-const openai = new OpenAIApi(configuration);
-
 interface PRDetails {
   owner: string;
   repo: string;
@@ -98,7 +96,7 @@ async function getBaseAndHeadShas(
 
 function createPrompt(file: File, chunk: Chunk, prDetails: PRDetails): string {
   return `Your task is to review pull requests. Instructions:
-- Provide the response in following JSON format:  [{"lineNumber":  <line_number>, "reviewComment": "<review comment>"}]
+- Provide the response in following JSON format:  {"reviews": [{"lineNumber":  <line_number>, "reviewComment": "<review comment>"}]}
 - Do not give positive comments or compliments.
 - Provide comments and suggestions ONLY if there is something to improve, otherwise return an empty array.
 - Write the comment in GitHub Markdown format.
@@ -142,8 +140,12 @@ async function getAIResponse(prompt: string): Promise<Array<{
   };
 
   try {
-    const response = await openai.createChatCompletion({
+    const response = await openai.chat.completions.create({
       ...queryConfig,
+      // return JSON if the model supports it:
+      ...(OPENAI_API_MODEL === "gpt-4-1106-preview"
+        ? { response_format: { type: "json_object" } }
+        : {}),
       messages: [
         {
           role: "system",
@@ -152,8 +154,8 @@ async function getAIResponse(prompt: string): Promise<Array<{
       ],
     });
 
-    const res = response.data.choices[0].message?.content?.trim() || "[]";
-    return JSON.parse(res);
+    const res = response.choices[0].message?.content?.trim() || "{}";
+    return JSON.parse(res).reviews;
   } catch (error) {
     console.error("Error:", error);
     return null;
diff --git a/yarn.lock b/yarn.lock
index ec19dc1e..09989927 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -163,6 +163,28 @@
   resolved "https://registry.yarnpkg.com/@tsconfig/node16/-/node16-1.0.3.tgz#472eaab5f15c1ffdd7f8628bd4c4f753995ec79e"
   integrity sha512-yOlFc+7UtL/89t2ZhjPvvB/DeAr3r+Dq58IgzsFkOAvVC6NMJXmCGjbptdXdR9qsX7pKcTL+s87FtYREi2dEEQ==
 
+"@types/node-fetch@^2.6.4":
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/@types/node-fetch/-/node-fetch-2.6.9.tgz#15f529d247f1ede1824f7e7acdaa192d5f28071e"
+  integrity sha512-bQVlnMLFJ2d35DkPNjEPmd9ueO/rh5EiaZt2bhqiSarPjZIuIV6bPQVqcrEyvNo+AfTrRGVazle1tl597w3gfA==
+  dependencies:
+    "@types/node" "*"
+    form-data "^4.0.0"
+
+"@types/node@*":
+  version "20.10.2"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.10.2.tgz#32a5e8228357f57714ad28d52229ab04880c2814"
+  integrity sha512-37MXfxkb0vuIlRKHNxwCkb60PNBpR94u4efQuN4JgIAm66zfCDXGSAFCef9XUWFovX2R1ok6Z7MHhtdVXXkkIw==
+  dependencies:
+    undici-types "~5.26.4"
+
+"@types/node@^18.11.18":
+  version "18.19.1"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.19.1.tgz#e3ed7d5ab5ea21f33a4503decb2171e0d8f53070"
+  integrity sha512-mZJ9V11gG5Vp0Ox2oERpeFDl+JvCwK24PGy76vVY/UgBtjwJWc5rYBThFxmbnYOm9UPZNm6wEl/sxHt2SU7x9A==
+  dependencies:
+    undici-types "~5.26.4"
+
 "@types/node@^18.15.5":
   version "18.15.5"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-18.15.5.tgz#3af577099a99c61479149b716183e70b5239324a"
@@ -173,6 +195,13 @@
   resolved "https://registry.yarnpkg.com/@vercel/ncc/-/ncc-0.36.1.tgz#d4c01fdbbe909d128d1bf11c7f8b5431654c5b95"
   integrity sha512-S4cL7Taa9yb5qbv+6wLgiKVZ03Qfkc4jGRuiUQMQ8HGBD5pcNRnHeYM33zBvJE4/zJGjJJ8GScB+WmTsn9mORw==
 
+abort-controller@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/abort-controller/-/abort-controller-3.0.0.tgz#eaf54d53b62bae4138e809ca225c8439a6efb392"
+  integrity sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg==
+  dependencies:
+    event-target-shim "^5.0.0"
+
 acorn-walk@^8.1.1:
   version "8.2.0"
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.2.0.tgz#741210f2e2426454508853a2f44d0ab83b7f69c1"
@@ -183,6 +212,13 @@ acorn@^8.4.1:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.8.2.tgz#1b2f25db02af965399b9776b0c2c391276d37c4a"
   integrity sha512-xjIYgE8HBrkpd/sJqOGNspf8uHG+NOHGOw6a/Urj8taM2EXfdNAH2oFcPeIFfsv3+kz/mJrS5VuMqbNLjCa2vw==
 
+agentkeepalive@^4.2.1:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/agentkeepalive/-/agentkeepalive-4.5.0.tgz#2673ad1389b3c418c5a20c5d7364f93ca04be923"
+  integrity sha512-5GG/5IbQQpC9FpkRGsSvZI5QYeSCzlJHdpBQntCsuTOxhKD8lqKhrleg2Yi7yvMIf82Ycmmqln9U8V9qwEiJew==
+  dependencies:
+    humanize-ms "^1.2.1"
+
 arg@^4.1.0:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/arg/-/arg-4.1.3.tgz#269fc7ad5b8e42cb63c896d5666017261c144089"
@@ -193,18 +229,16 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==
 
-axios@^0.26.0:
-  version "0.26.1"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.26.1.tgz#1ede41c51fcf51bbbd6fd43669caaa4f0495aaa9"
-  integrity sha512-fPwcX4EvnSHuInCMItEhAGnaSEXRBjtzh9fOtsE6E1G6p7vl7edEeZe11QHf18+6+9gR5PbKV/sGKNaD8YaMeA==
-  dependencies:
-    follow-redirects "^1.14.8"
-
 balanced-match@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
   integrity sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==
 
+base-64@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/base-64/-/base-64-0.1.0.tgz#780a99c84e7d600260361511c4877613bf24f6bb"
+  integrity sha512-Y5gU45svrR5tI2Vt/X9GPd3L0HNIKzGu202EjxrXMpuc2V2CiKgemAbUUsqYmZJvPtCXoUKjNZwBJzsNScUbXA==
+
 before-after-hook@^2.2.0:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-2.2.3.tgz#c51e809c81a4e354084422b9b26bad88249c517c"
@@ -217,6 +251,11 @@ brace-expansion@^2.0.1:
   dependencies:
     balanced-match "^1.0.0"
 
+charenc@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/charenc/-/charenc-0.0.2.tgz#c0a1d2f3a7092e03774bfa83f14c0fc5790a8667"
+  integrity sha512-yrLQ/yVUFXkzg7EDQsPieE/53+0RlaWTs+wBrvW36cyilJ2SaDWfl4Yj7MtLTXleV9uEKefbAGUPv2/iWSooRA==
+
 combined-stream@^1.0.8:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
@@ -229,6 +268,11 @@ create-require@^1.1.0:
   resolved "https://registry.yarnpkg.com/create-require/-/create-require-1.1.1.tgz#c1d7e8f1e5f6cfc9ff65f9cd352d37348756c333"
   integrity sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==
 
+crypt@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/crypt/-/crypt-0.0.2.tgz#88d7ff7ec0dfb86f713dc87bbb42d044d3e6c41b"
+  integrity sha512-mCxBlsHFYh9C+HVpiEacem8FEBnMXgU9gy4zmNC+SXAZNB/1idgp/aulFJ4FgCi7GPEVbfyng092GqL2k2rmow==
+
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
@@ -244,10 +288,23 @@ diff@^4.0.1:
   resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
   integrity sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==
 
-follow-redirects@^1.14.8:
-  version "1.15.2"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.15.2.tgz#b460864144ba63f2681096f274c4e57026da2c13"
-  integrity sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA==
+digest-fetch@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/digest-fetch/-/digest-fetch-1.3.0.tgz#898e69264d00012a23cf26e8a3e40320143fc661"
+  integrity sha512-CGJuv6iKNM7QyZlM2T3sPAdZWd/p9zQiRNS9G+9COUCwzWFTs0Xp8NF5iePx7wtvhDykReiRRrSeNb4oMmB8lA==
+  dependencies:
+    base-64 "^0.1.0"
+    md5 "^2.3.0"
+
+event-target-shim@^5.0.0:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/event-target-shim/-/event-target-shim-5.0.1.tgz#5d4d3ebdf9583d63a5333ce2deb7480ab2b05789"
+  integrity sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ==
+
+form-data-encoder@1.7.2:
+  version "1.7.2"
+  resolved "https://registry.yarnpkg.com/form-data-encoder/-/form-data-encoder-1.7.2.tgz#1f1ae3dccf58ed4690b86d87e4f57c654fbab040"
+  integrity sha512-qfqtYan3rxrnCk1VYaA4H+Ms9xdpPqvLZa6xmMgFvhO32x7/3J/ExcTd6qpxM0vH2GdMI+poehyBZvqfMTto8A==
 
 form-data@^4.0.0:
   version "4.0.0"
@@ -258,6 +315,26 @@ form-data@^4.0.0:
     combined-stream "^1.0.8"
     mime-types "^2.1.12"
 
+formdata-node@^4.3.2:
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/formdata-node/-/formdata-node-4.4.1.tgz#23f6a5cb9cb55315912cbec4ff7b0f59bbd191e2"
+  integrity sha512-0iirZp3uVDjVGt9p49aTaqjk84TrglENEDuqfdlZQ1roC9CWlPk6Avf8EEnZNcAqPonwkG35x4n3ww/1THYAeQ==
+  dependencies:
+    node-domexception "1.0.0"
+    web-streams-polyfill "4.0.0-beta.3"
+
+humanize-ms@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/humanize-ms/-/humanize-ms-1.2.1.tgz#c46e3159a293f6b896da29316d8b6fe8bb79bbed"
+  integrity sha512-Fl70vYtsAFb/C06PTS9dZBo7ihau+Tu/DNCk/OyHhea07S+aeMWpFFkUaXRa8fI+ScZbEI8dfSxwY7gxZ9SAVQ==
+  dependencies:
+    ms "^2.0.0"
+
+is-buffer@~1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+  integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
+
 is-plain-object@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-5.0.0.tgz#4427f50ab3429e9025ea7d52e9043a9ef4159344"
@@ -268,6 +345,15 @@ make-error@^1.1.1:
   resolved "https://registry.yarnpkg.com/make-error/-/make-error-1.3.6.tgz#2eb2e37ea9b67c4891f684a1394799af484cf7a2"
   integrity sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==
 
+md5@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/md5/-/md5-2.3.0.tgz#c3da9a6aae3a30b46b7b0c349b87b110dc3bda4f"
+  integrity sha512-T1GITYmFaKuO91vxyoQMFETst+O71VUPEU3ze5GNzDm0OWdP8v1ziTaAEPUr/3kLsY3Sftgz242A1SetQiDL7g==
+  dependencies:
+    charenc "0.0.2"
+    crypt "0.0.2"
+    is-buffer "~1.1.6"
+
 mime-db@1.52.0:
   version "1.52.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.52.0.tgz#bbabcdc02859f4987301c856e3387ce5ec43bf70"
@@ -287,6 +373,16 @@ minimatch@^7.4.2:
   dependencies:
     brace-expansion "^2.0.1"
 
+ms@^2.0.0:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
+  integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
+
+node-domexception@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/node-domexception/-/node-domexception-1.0.0.tgz#6888db46a1f71c0b76b3f7555016b63fe64766e5"
+  integrity sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ==
+
 node-fetch@^2.6.7:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.9.tgz#7c7f744b5cc6eb5fd404e0c7a9fec630a55657e6"
@@ -301,13 +397,20 @@ once@^1.4.0:
   dependencies:
     wrappy "1"
 
-openai@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/openai/-/openai-3.2.1.tgz#1fa35bdf979cbde8453b43f2dd3a7d401ee40866"
-  integrity sha512-762C9BNlJPbjjlWZi4WYK9iM2tAVAv0uUp1UmI34vb0CN5T2mjB/qM6RYBmNKMh/dN9fC+bxqPwWJZUTWW052A==
+openai@^4.20.1:
+  version "4.20.1"
+  resolved "https://registry.yarnpkg.com/openai/-/openai-4.20.1.tgz#afa0d496d125b5a0f6cebcb4b9aeabf71e00214e"
+  integrity sha512-Dd3q8EvINfganZFtg6V36HjrMaihqRgIcKiHua4Nq9aw/PxOP48dhbsk8x5klrxajt5Lpnc1KTOG5i1S6BKAJA==
   dependencies:
-    axios "^0.26.0"
-    form-data "^4.0.0"
+    "@types/node" "^18.11.18"
+    "@types/node-fetch" "^2.6.4"
+    abort-controller "^3.0.0"
+    agentkeepalive "^4.2.1"
+    digest-fetch "^1.3.0"
+    form-data-encoder "1.7.2"
+    formdata-node "^4.3.2"
+    node-fetch "^2.6.7"
+    web-streams-polyfill "^3.2.1"
 
 parse-diff@^0.11.1:
   version "0.11.1"
@@ -353,6 +456,11 @@ typescript@^5.0.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.0.2.tgz#891e1a90c5189d8506af64b9ef929fca99ba1ee5"
   integrity sha512-wVORMBGO/FAs/++blGNeAVdbNKtIh1rbBL2EyQ1+J9lClJ93KiiKe8PmFIVdXhHcyv44SL9oglmfeSsndo0jRw==
 
+undici-types@~5.26.4:
+  version "5.26.5"
+  resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-5.26.5.tgz#bcd539893d00b56e964fd2657a4866b221a65617"
+  integrity sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==
+
 universal-user-agent@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/universal-user-agent/-/universal-user-agent-6.0.0.tgz#3381f8503b251c0d9cd21bc1de939ec9df5480ee"
@@ -368,6 +476,16 @@ v8-compile-cache-lib@^3.0.1:
   resolved "https://registry.yarnpkg.com/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz#6336e8d71965cb3d35a1bbb7868445a7c05264bf"
   integrity sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==
 
+web-streams-polyfill@4.0.0-beta.3:
+  version "4.0.0-beta.3"
+  resolved "https://registry.yarnpkg.com/web-streams-polyfill/-/web-streams-polyfill-4.0.0-beta.3.tgz#2898486b74f5156095e473efe989dcf185047a38"
+  integrity sha512-QW95TCTaHmsYfHDybGMwO5IJIM93I/6vTRk+daHTWFPhwh+C8Cg7j7XyKrwrj8Ib6vYXe0ocYNrmzY4xAAN6ug==
+
+web-streams-polyfill@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/web-streams-polyfill/-/web-streams-polyfill-3.2.1.tgz#71c2718c52b45fd49dbeee88634b3a60ceab42a6"
+  integrity sha512-e0MO3wdXWKrLbL0DgGnUV7WHVuw9OUvL4hjgnPkIeEvESk74gAITi5G606JtZPp39cd8HA9VQzCIvA49LpPN5Q==
+
 webidl-conversions@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"