diff --git a/packages/ts/test-envs/bun-package-manager-basic/package.json b/packages/ts/test-envs/bun-package-manager-basic/package.json
new file mode 100644
index 000000000..4d1c13bad
--- /dev/null
+++ b/packages/ts/test-envs/bun-package-manager-basic/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "bun-package-manager-basic",
+  "version": "1.0.0",
+  "packageManager": "bun",
+  "description": "Test environment for basic Bun package manager without version",
+  "scripts": {
+    "dev": "echo 'Development server with Bun!'",
+    "build": "echo 'Building with Bun!'",
+    "test": "echo 'Testing with Bun!'"
+  },
+  "dependencies": {
+    "express": "^5.1.0"
+  },
+  "devDependencies": {
+    "@types/express": "^4.17.0",
+    "eslint": "8"
+  }
+}
diff --git a/packages/zig/test-envs/bun-package-manager-basic/package.json b/packages/zig/test-envs/bun-package-manager-basic/package.json
index 5d8da9e4e..4d1c13bad 100644
--- a/packages/zig/test-envs/bun-package-manager-basic/package.json
+++ b/packages/zig/test-envs/bun-package-manager-basic/package.json
@@ -9,7 +9,7 @@
     "test": "echo 'Testing with Bun!'"
   },
   "dependencies": {
-    "express": "^4.18.0"
+    "express": "^5.1.0"
   },
   "devDependencies": {
     "@types/express": "^4.17.0",