diff --git a/packages/rslint-wasm/package.json b/packages/rslint-wasm/package.json
index e22c37e2..34f2b271 100644
--- a/packages/rslint-wasm/package.json
+++ b/packages/rslint-wasm/package.json
@@ -30,7 +30,7 @@
     "buffer": "^6.0.3",
     "cross-env": "^10.1.0",
     "esbuild-plugin-polyfill-node": "0.3.0",
-    "memfs": "^4.49.0",
+    "memfs": "^4.51.0",
     "prebundle": "1.4.1",
     "@typescript/native-preview": "7.0.0-dev.20250904.1"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b9e39559..40787fd5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -150,8 +150,8 @@ importers:
         specifier: 0.3.0
         version: 0.3.0(esbuild@0.27.0)
       memfs:
-        specifier: ^4.49.0
-        version: 4.49.0
+        specifier: ^4.51.0
+        version: 4.51.0
       prebundle:
         specifier: 1.4.1
         version: 1.4.1(typescript@5.9.2)
@@ -3695,8 +3695,8 @@ packages:
   memfs@3.0.4:
     resolution: {integrity: sha512-OcZEzwX9E5AoY8SXjuAvw0DbIAYwUzV/I236I8Pqvrlv7sL/Y0E9aRCon05DhaV8pg1b32uxj76RgW0s5xjHBA==}
 
-  memfs@4.49.0:
-    resolution: {integrity: sha512-L9uC9vGuc4xFybbdOpRLoOAOq1YEBBsocCs5NVW32DfU+CZWWIn3OVF+lB8Gp4ttBVSMazwrTrjv8ussX/e3VQ==}
+  memfs@4.51.0:
+    resolution: {integrity: sha512-4zngfkVM/GpIhC8YazOsM6E8hoB33NP0BCESPOA6z7qaL6umPJNqkO8CNYaLV2FB2MV6H1O3x2luHHOSqppv+A==}
 
   merge2@1.4.1:
     resolution: {integrity: sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==}
@@ -8710,7 +8710,7 @@ snapshots:
       fast-extend: 1.0.2
       fs-monkey: 0.3.3
 
-  memfs@4.49.0:
+  memfs@4.51.0:
     dependencies:
       '@jsonjoy.com/json-pack': 1.11.0(tslib@2.8.1)
       '@jsonjoy.com/util': 1.9.0(tslib@2.8.1)