diff --git a/deno.json b/deno.json
index 7fcd271..5b0f989 100644
--- a/deno.json
+++ b/deno.json
@@ -12,7 +12,7 @@
   },
   "pkgx": "deno^1.33.3 npm",
   "tasks": {
-    "test": "deno test --unstable -A",
+    "test": "deno test --parallel --unstable -A",
     "typecheck": "deno check --unstable ./mod.ts",
     "dnt": ".github/deno-to-node.ts"
   },