diff --git a/package.json b/package.json
index 14011c9f..46513c33 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "eslint": "^6.8.0",
     "eslint-config-klasa": "dirigeants/klasa-lint",
     "nyc": "^15.1.0",
-    "source-map-support": "^0.5.19",
+    "source-map-support": "^0.5.21",
     "typedoc": "^0.20.36",
     "typescript": "^4.2.4"
   },
diff --git a/yarn.lock b/yarn.lock
index 285a5eba..7026cfa6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2594,10 +2594,10 @@ slice-ansi@^3.0.0:
     astral-regex "^2.0.0"
     is-fullwidth-code-point "^3.0.0"
 
-source-map-support@^0.5.19:
-  version "0.5.19"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.19.tgz#a98b62f86dcaf4f67399648c085291ab9e8fed61"
-  integrity sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==
+source-map-support@^0.5.19, source-map-support@^0.5.21:
+  version "0.5.21"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.21.tgz#04fe7c7f9e1ed2d662233c28cb2b35b9f63f6e4f"
+  integrity sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==
   dependencies:
     buffer-from "^1.0.0"
     source-map "^0.6.0"