diff --git a/packages/cli/package.json b/packages/cli/package.json
index 5082c8a..c9672a4 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -41,7 +41,7 @@
     "build-run": "ncc build -m src/run.ts -o dist/run",
     "build": "ncc build -m src/index.ts -o dist && npm run build-run",
     "to-publish": "npx vite-node publish.js",
-    "test": "vitest --reporter=verbose",
+    "test": "vitest --reporter=verbose --pool=forks",
     "lint": "eslint ./src"
   },
   "dependencies": {
diff --git a/packages/cli/src/utils/generate-proxy-image.test.ts b/packages/cli/src/utils/generate-proxy-image.test.ts
index 668b652..39675d7 100644
--- a/packages/cli/src/utils/generate-proxy-image.test.ts
+++ b/packages/cli/src/utils/generate-proxy-image.test.ts
@@ -55,6 +55,7 @@ describe("Utils - generateProxyImage", () => {
         ]);
 
         expect(fs.existsSync).toBeCalledTimes(4);
+
         expect(mkcert).toBeCalledTimes(2);
         expect(mkcert).nthCalledWith(
           1,
@@ -67,6 +68,10 @@ describe("Utils - generateProxyImage", () => {
           "/root/path/.local-ssl-management/ssl",
         );
 
+        // read files
+        expect(fs.readFileSync).not.toBeCalled();
+
+        // write files
         expect(fs.writeFileSync).toBeCalledTimes(2);
         expect(fs.writeFileSync).toMatchSnapshot();
 
diff --git a/packages/cli/vitest.config.mts b/packages/cli/vitest.config.mts
index e3982d6..bbc106c 100644
--- a/packages/cli/vitest.config.mts
+++ b/packages/cli/vitest.config.mts
@@ -10,6 +10,10 @@ export default mergeConfig(
       globals: true,
       environment: "node",
       setupFiles: "./global-setup.ts",
+      clearMocks: true,
+      snapshotFormat: {
+        printBasicPrototype: false,
+      },
     },
     resolve: {
       alias: {