diff --git a/.vscode/launch.template.json b/.vscode/launch.template.json
index 3f844d44951..7f8c7a70484 100644
--- a/.vscode/launch.template.json
+++ b/.vscode/launch.template.json
@@ -1,59 +1,79 @@
 {
-    "version": "0.2.0",
-    "configurations": [
-      {
-        "type": "node",
-        "name": "Attach",
-        "port": 9229,
-        "request": "attach",
-        "skipFiles": ["<node_internals>/**"]
-      },
-      {
-        "type": "node",
-        "request": "launch",
-        "name": "Beacon",
-        "skipFiles": ["<node_internals>/**"],
-        "smartStep": true,
-        "program": "${workspaceFolder}/packages/cli/bin/lodestar.js",
-        "args": ["beacon"],
-        "console": "integratedTerminal"
-      },
-      {
-        "type": "node",
-        "request": "launch",
-        "name": "Dev",
-        "skipFiles": ["<node_internals>/**"],
-        "smartStep": true,
-        "program": "${workspaceFolder}/packages/cli/bin/lodestar.js",
-        "args": ["dev"],
-        "console": "integratedTerminal"
-      },
-      {
-        "name": "Test Current File",
-        "type": "node",
-        "request": "launch",
-        "program": "${workspaceFolder}/node_modules/.bin/vitest",
-        "args": ["--run", "${file}", "-t", "${input:testName}"],
-        "cwd": "${workspaceFolder}/${input:packageName}",
-        "console": "integratedTerminal",
-        "skipFiles": ["<node_internals>/**"]
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "name": "Attach",
+      "port": 9229,
+      "request": "attach",
+      "skipFiles": [
+        "<node_internals>/**"
+      ]
+    },
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Beacon",
+      "skipFiles": [
+        "<node_internals>/**"
+      ],
+      "smartStep": true,
+      "program": "${workspaceFolder}/packages/cli/bin/lodestar.js",
+      "args": [
+        "beacon"
+      ],
+      "console": "integratedTerminal"
+    },
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Dev",
+      "skipFiles": [
+        "<node_internals>/**"
+      ],
+      "smartStep": true,
+      "program": "${workspaceFolder}/packages/cli/bin/lodestar.js",
+      "args": [
+        "dev"
+      ],
+      "console": "integratedTerminal"
+    },
+    {
+      "name": "Test Current File",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/node_modules/.bin/vitest",
+      "args": [
+        "--run",
+        "${file}",
+        "-t",
+        "${input:testName}",
+        "--pool",
+        "threads",
+        "--poolOptions.threads.singleThread"
+      ],
+      "cwd": "${workspaceFolder}/${input:packageName}",
+      "console": "integratedTerminal",
+      "skipFiles": [
+        "<node_internals>/**"
+      ]
+    }
+  ],
+  "inputs": [
+    {
+      "id": "packageName",
+      "type": "command",
+      "command": "extension.commandvariable.transform",
+      "args": {
+        "text": "${relativeFileDirname}",
+        "find": "^(packages/[^/]+).*",
+        "replace": "$1"
       }
-    ],
-    "inputs": [
-      {
-        "id": "packageName",
-        "type": "command",
-        "command": "extension.commandvariable.transform",
-        "args": {
-          "text": "${relativeFileDirname}",
-          "find": "^(packages/[^/]+).*",
-          "replace": "$1"
-        }
-      },
-      {
-        "id": "testName",
-        "type": "promptString",
-        "description": "Enter the test name to run, leave empty to run all"
-      }
-    ]
-  }
\ No newline at end of file
+    },
+    {
+      "id": "testName",
+      "type": "promptString",
+      "description": "Enter the test name to run, leave empty to run all"
+    }
+  ]
+}
\ No newline at end of file