diff --git a/package.json b/package.json
index b066090..b9483ad 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "benchmark": "^2.1.4",
     "standard": "^17.0.0",
     "tap": "^16.0.0",
-    "tsd": "^0.27.0"
+    "tsd": "^0.28.0"
   },
   "tsd": {
     "compilerOptions": {