diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7fbb11f..bfd2190 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -7,7 +7,8 @@ jobs:
       fail-fast: false
       matrix:
         node: [18, 20]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        bun: [latest]
+        os: [ubuntu-latest, macos-latest]
 
     runs-on: ubuntu-latest
     steps:
@@ -15,4 +16,8 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: ${{matrix.node}}
+      - uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: ${{matrix.bun}}
       - run: make lint test
+      - run: bun test
diff --git a/.gitignore b/.gitignore
index 2542bd1..b4fd70d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,7 @@
 /npm-debug.log*
 /yarn-error.log
 /yarn.lock
+/bun.lockb
+/__snapshots__
 .DS_Store
+
diff --git a/Makefile b/Makefile
index 04c3b0f..5dc389d 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,11 @@ test: node_modules build
 test-update: node_modules build
 	npx vitest -u
 
+.PHONY: test
+test-bun: node_modules build
+	bun test
+	rm -rf __snapshots__
+
 .PHONY: build
 build: $(DST)
 
diff --git a/README.md b/README.md
index 8491045..7a7b1ac 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@
 
 # Usage
 
+`bun` and `node` are supported and tested. For bun, replace `npx` with `bunx` and `npm` with `bun`.
+
 ```bash
 # check for updates
 npx updates
@@ -15,13 +17,6 @@ npx updates
 npx updates -u && npm i
 ```
 
-## Bun and Deno
-
-```bash
-bunx updates
-deno run -A npm:updates
-```
-
 ## Options
 
 See `--help`. Options that take multiple arguments can take them either via comma-separated value or by specifying the option multiple times.