diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..e848bff
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,9 @@
+export function diff (originalObj: object, updatedObj: object): object
+
+export function addedDiff (originalObj: object, updatedObj: object): object
+
+export function deletedDiff (originalObj: object, updatedObj: object): object
+
+export function updatedDiff (originalObj: object, updatedObj: object): object
+
+export function detailedDiff (originalObj: object, updatedObj: object): object
diff --git a/package.json b/package.json
index 3153a1c..695400e 100644
--- a/package.json
+++ b/package.json
@@ -3,8 +3,10 @@
   "version": "1.0.4",
   "description": "Deep diffs two objects, including nested structures of arrays and objects, and return the difference.",
   "main": "dist/index.js",
+  "types": "./index.d.ts",
   "files": [
     "dist",
+    "index.d.ts",
     "README.md"
   ],
   "scripts": {