diff --git a/package.json b/package.json
index 7df1b793..c9bcf050 100644
--- a/package.json
+++ b/package.json
@@ -446,7 +446,7 @@
 		"glob": "^13.0.0",
 		"jsonc-eslint-parser": "^2.4.2",
 		"markdown-eslint-parser": "^1.2.1",
-		"memfs": "^4.49.0",
+		"memfs": "^4.51.1",
 		"nyc": "^17.1.0",
 		"prettier": "^3.6.2",
 		"ts-loader": "^9.5.4",
diff --git a/yarn.lock b/yarn.lock
index 5caa296e..fc048c4e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6013,10 +6013,10 @@ mdurl@^2.0.0:
   resolved "https://registry.yarnpkg.com/mdurl/-/mdurl-2.0.0.tgz#80676ec0433025dd3e17ee983d0fe8de5a2237e0"
   integrity sha512-Lf+9+2r+Tdp5wXDXC4PcIBjTDtq4UKjCPMQhKIuzpJNW0b96kVqSwW0bT7FhRSfmAiFYgP+SCRvdrDozfh0U5w==
 
-memfs@^4.49.0:
-  version "4.49.0"
-  resolved "https://registry.yarnpkg.com/memfs/-/memfs-4.49.0.tgz#bc35069570d41a31c62e31f1a6ec6057a8ea82f0"
-  integrity sha512-L9uC9vGuc4xFybbdOpRLoOAOq1YEBBsocCs5NVW32DfU+CZWWIn3OVF+lB8Gp4ttBVSMazwrTrjv8ussX/e3VQ==
+memfs@^4.51.1:
+  version "4.51.1"
+  resolved "https://registry.yarnpkg.com/memfs/-/memfs-4.51.1.tgz#25945de4a90d1573945105e187daa9385e1bca73"
+  integrity sha512-Eyt3XrufitN2ZL9c/uIRMyDwXanLI88h/L3MoWqNY747ha3dMR9dWqp8cRT5ntjZ0U1TNuq4U91ZXK0sMBjYOQ==
   dependencies:
     "@jsonjoy.com/json-pack" "^1.11.0"
     "@jsonjoy.com/util" "^1.9.0"