diff --git a/src/index.ts b/src/index.ts
index 46e6100..1cff15c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1 +1 @@
-export { randomString } from './utils/randomString.js';
\ No newline at end of file
+export { randomString } from './utils/randomString.ts';
\ No newline at end of file
diff --git a/tests/randomString.test.ts b/tests/randomString.test.ts
index f316d9a..4ee5aa9 100644
--- a/tests/randomString.test.ts
+++ b/tests/randomString.test.ts
@@ -1,4 +1,4 @@
-import { randomString } from '../src/index.js'
+import { randomString } from '../src/index.ts'
 
 describe('randomString', () => {
     it('should return a random string with the length of 10', () => {
diff --git a/tsconfig.json b/tsconfig.json
index 99b3dc0..e2f56d7 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -35,7 +35,7 @@
     // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
     // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
     // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
-    // "allowImportingTsExtensions": true,               /* Allow imports to include TypeScript file extensions. Requires '--moduleResolution bundler' and either '--noEmit' or '--emitDeclarationOnly' to be set. */
+    "allowImportingTsExtensions": true,               /* Allow imports to include TypeScript file extensions. Requires '--moduleResolution bundler' and either '--noEmit' or '--emitDeclarationOnly' to be set. */
     // "resolvePackageJsonExports": true,                /* Use the package.json 'exports' field when resolving package imports. */
     // "resolvePackageJsonImports": true,                /* Use the package.json 'imports' field when resolving imports. */
     // "customConditions": [],                           /* Conditions to set in addition to the resolver-specific defaults when resolving imports. */
diff --git a/workflows/jest.yml b/workflows/jest.yml
new file mode 100644
index 0000000..27adac5
--- /dev/null
+++ b/workflows/jest.yml
@@ -0,0 +1,57 @@
+---
+resources:
+- name: repo
+  type: git
+  icon: github
+  source:
+    uri: https://github.com/srizan10/util-utils.git
+
+- name: node-image
+  type: registry-image
+  source:
+    repository: node
+    tag: lts-alpine
+
+jobs:
+- name: test
+  public: true
+  plan:
+  - get: node-image
+  - get: repo
+    trigger: true
+  - task: install
+    image: node-image
+    config:
+      inputs:
+      - name: repo
+      outputs:
+      - name: dependencies
+        path: repo/node_modules
+      platform: linux
+      run:
+        path: yarn
+        dir: repo
+  - task: build
+    image: node-image
+    config:
+      inputs:
+      - name: repo
+      - name: dependencies
+        path: repo/node_modules
+      platform: linux
+      run:
+        path: yarn
+        args: ["build"]
+        dir: repo
+  - task: test
+    image: node-image
+    config:
+      inputs:
+      - name: repo
+      - name: dependencies
+        path: repo/node_modules
+      platform: linux
+      run:
+        path: yarn
+        args: ["test"]
+        dir: repo
\ No newline at end of file