diff --git a/package.json b/package.json
index 5835558..1aa3abb 100644
--- a/package.json
+++ b/package.json
@@ -4,8 +4,8 @@
   "description": "Github action that automatically generates changelog when PR is opened/updated",
   "main": "dist/index.js",
   "scripts": {
-    "changelog": "node src/index.js",
-    "build": "ncc build src/index.js -o dist --minify"
+    "changelog": "node src/index.ts",
+    "build": "ncc build src/index.ts -o dist --minify"
   },
   "repository": {
     "type": "git",
@@ -30,6 +30,11 @@
     "node-fetch": "^2.6.0"
   },
   "devDependencies": {
-    "@zeit/ncc": "^0.22.3"
+    "@types/node": "^14.0.22",
+    "@zeit/ncc": "^0.22.3",
+    "prettier": "^2.0.5",
+    "tslint-config-prettier": "^1.18.0",
+    "tslint-plugin-prettier": "^2.3.0",
+    "typescript": "^3.9.6"
   }
 }
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..de87497
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "module": "ESNext",
+    "target": "ESNext",
+    "moduleResolution": "node",
+    "declaration": false,
+    "sourceMap": false,
+    "noImplicitAny": false,
+    "esModuleInterop": true,
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "types": [],
+    "skipLibCheck": true
+  }
+}
diff --git a/tslint.json b/tslint.json
new file mode 100644
index 0000000..038c19a
--- /dev/null
+++ b/tslint.json
@@ -0,0 +1,12 @@
+{
+  "plugins": ["prettier"],
+  "extends": [
+    "tslint-plugin-prettier",
+    "tslint:recommended",
+    "tslint-config-prettier"
+  ],
+  "rules": {
+    "max-line-length": [true],
+    "prettier": true
+  }
+}
diff --git a/yarn.lock b/yarn.lock
index 8db34c6..9186778 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -118,7 +118,7 @@
   dependencies:
     "@types/node" ">= 8"
 
-"@types/node@>= 8":
+"@types/node@>= 8", "@types/node@^14.0.22":
   version "14.0.22"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.0.22.tgz#23ea4d88189cec7d58f9e6b66f786b215eb61bdc"
   integrity sha512-emeGcJvdiZ4Z3ohbmw93E/64jRzUHAItSHt8nF7M4TGgQTiWqFVGB8KNpLGFmUHmHLvjvBgFwVlqNcq+VuGv9g==
@@ -156,6 +156,14 @@ end-of-stream@^1.1.0:
   dependencies:
     once "^1.4.0"
 
+eslint-plugin-prettier@^2.2.0:
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-2.7.0.tgz#b4312dcf2c1d965379d7f9d5b5f8aaadc6a45904"
+  integrity sha512-CStQYJgALoQBw3FsBzH0VOVDRnJ/ZimUlpLm226U8qgqYJfPOY/CPK6wyRInMxh73HSKg5wyRwdS4BVYYHwokA==
+  dependencies:
+    fast-diff "^1.1.1"
+    jest-docblock "^21.0.0"
+
 execa@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
@@ -169,6 +177,11 @@ execa@^1.0.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+fast-diff@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.2.0.tgz#73ee11982d86caaf7959828d519cfe927fac5f03"
+  integrity sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==
+
 get-stream@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
@@ -191,6 +204,16 @@ isexe@^2.0.0:
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
   integrity sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=
 
+jest-docblock@^21.0.0:
+  version "21.2.0"
+  resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-21.2.0.tgz#51529c3b30d5fd159da60c27ceedc195faf8d414"
+  integrity sha512-5IZ7sY9dBAYSV+YjQ0Ovb540Ku7AO9Z5o2Cg789xj167iQuZ2cG+z0f3Uct6WeYLbU6aQiM2pCs7sZ+4dotydw==
+
+lines-and-columns@^1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/lines-and-columns/-/lines-and-columns-1.1.6.tgz#1c00c743b433cd0a4e80758f7b64a57440d9ff00"
+  integrity sha1-HADHQ7QzzQpOgHWPe2SldEDZ/wA=
+
 macos-release@^2.2.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/macos-release/-/macos-release-2.4.0.tgz#837b39fc01785c3584f103c5599e0f0c8068b49e"
@@ -238,6 +261,11 @@ path-key@^2.0.0, path-key@^2.0.1:
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
+prettier@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.0.5.tgz#d6d56282455243f2f92cc1716692c08aa31522d4"
+  integrity sha512-7PtVymN48hGcO4fGjybyBSIWDsLU4H4XlvOHfq91pz9kkGlonzwTfYkaIEwiRg/dAJF9YlbsduBAgtYLi+8cFg==
+
 pump@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
@@ -273,11 +301,35 @@ strip-eof@^1.0.0:
   resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
   integrity sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=
 
+tslib@^1.7.1:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.13.0.tgz#c881e13cc7015894ed914862d276436fa9a47043"
+  integrity sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==
+
+tslint-config-prettier@^1.18.0:
+  version "1.18.0"
+  resolved "https://registry.yarnpkg.com/tslint-config-prettier/-/tslint-config-prettier-1.18.0.tgz#75f140bde947d35d8f0d238e0ebf809d64592c37"
+  integrity sha512-xPw9PgNPLG3iKRxmK7DWr+Ea/SzrvfHtjFt5LBl61gk2UBG/DB9kCXRjv+xyIU1rUtnayLeMUVJBcMX8Z17nDg==
+
+tslint-plugin-prettier@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/tslint-plugin-prettier/-/tslint-plugin-prettier-2.3.0.tgz#73fe71bf9f03842ac48c104122ca9b1de012ecf4"
+  integrity sha512-F9e4K03yc9xuvv+A0v1EmjcnDwpz8SpCD8HzqSDe0eyg34cBinwn9JjmnnRrNAs4HdleRQj7qijp+P/JTxt4vA==
+  dependencies:
+    eslint-plugin-prettier "^2.2.0"
+    lines-and-columns "^1.1.6"
+    tslib "^1.7.1"
+
 tunnel@0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/tunnel/-/tunnel-0.0.6.tgz#72f1314b34a5b192db012324df2cc587ca47f92c"
   integrity sha512-1h/Lnq9yajKY2PEbBadPXj3VxsDDu844OnaAo52UVmIzIvwwtBPIuNvkjuzBlTWpfJyUbG3ez0KSBibQkj4ojg==
 
+typescript@^3.9.6:
+  version "3.9.6"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.6.tgz#8f3e0198a34c3ae17091b35571d3afd31999365a"
+  integrity sha512-Pspx3oKAPJtjNwE92YS05HQoY7z2SFyOpHo9MqJor3BXAGNaPUs83CuVp9VISFkSjyRfiTpmKuAYGJB7S7hOxw==
+
 universal-user-agent@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/universal-user-agent/-/universal-user-agent-5.0.0.tgz#a3182aa758069bf0e79952570ca757de3579c1d9"