diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 959b01a..397736e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,6 +18,9 @@ jobs:
         node-version: [14.x, 17.x]
 
     steps:
+      - name: Install bun
+        uses: oven-sh/setup-bun@v1
+
       - name: Checkout repository
         uses: actions/checkout@v2
         with:
@@ -33,3 +36,6 @@ jobs:
 
       - name: Run the tests
         run: npm test
+
+      - run: bun install
+      - run: bun test
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f51d902..b0d1f5f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -2,7 +2,7 @@
 
 1. Install dependencies.
 
-   npm install
+   bun install
 
 1. Run jwt-cli.
 
diff --git a/bun.lockb b/bun.lockb
new file mode 100755
index 0000000..fd7e7cf
Binary files /dev/null and b/bun.lockb differ
diff --git a/package-lock.json b/package-lock.json
index 001aed5..59ae884 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "jwt-cli",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "jwt-cli",
-      "version": "2.0.0",
+      "version": "2.1.0",
       "license": "MIT",
       "dependencies": {
         "chalk": "^4.1.2",
diff --git a/package.json b/package.json
index 121d3ff..1c8fe20 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jwt-cli",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "CLI program for decoding JSON Web Tokens (JWT)",
   "repository": {
     "type": "git",