diff --git a/nix/sources.json b/nix/sources.json
index 7531e49ccab..327134b92b5 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -101,10 +101,10 @@
         "homepage": "https://wasi.dev",
         "owner": "WebAssembly",
         "repo": "wasi-libc",
-        "rev": "c5264e2bbe532994d06b039005f2af91bedcc1a6",
-        "sha256": "1skw2jqzaidr2zbzbjw32b36xvqniwf4if8cr4kbpp8vjvh7j2lr",
+        "rev": "f493dc284dca552e58921e488b513880d09bc528",
+        "sha256": "1ank6qlgzgmch58npkaay98xgg300mmphz3njjhrb1jlqpcd5n95",
         "type": "tarball",
-        "url": "https://github.com/WebAssembly/wasi-libc/archive/c5264e2bbe532994d06b039005f2af91bedcc1a6.tar.gz",
+        "url": "https://github.com/WebAssembly/wasi-libc/archive/f493dc284dca552e58921e488b513880d09bc528.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {