diff --git a/package.json b/package.json
index a31dfa6..178a3a9 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "photofinish": "^1.8.0",
     "snazzy": "^9.0.0",
     "standard": "^17.0.0",
-    "tsd": "^0.20.0",
+    "tsd": "^0.21.0",
     "typescript": "^4.5.2"
   },
   "keywords": [