diff --git a/package.json b/package.json
index b0f7bda..347fcbd 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "fastify": "^4.3.0",
     "standard": "^17.0.0",
     "tap": "^16.0.0",
-    "tsd": "^0.25.0"
+    "tsd": "^0.28.1"
   },
   "tsd": {
     "directory": "test"