diff --git a/pkgs/development/libraries/wasilibc/default.nix b/pkgs/development/libraries/wasilibc/default.nix
index c0714a78556a..82df25395f82 100644
--- a/pkgs/development/libraries/wasilibc/default.nix
+++ b/pkgs/development/libraries/wasilibc/default.nix
@@ -8,7 +8,7 @@
 
 let
   pname = "wasilibc";
-  version = "21";
+  version = "22-unstable-2024-10-16";
 in
 stdenv.mkDerivation {
   inherit pname version;
@@ -16,8 +16,8 @@ stdenv.mkDerivation {
   src = buildPackages.fetchFromGitHub {
     owner = "WebAssembly";
     repo = "wasi-libc";
-    rev = "refs/tags/wasi-sdk-${version}";
-    hash = "sha256-1LsMpO29y79twVrUsuM/JvC7hK8O6Yey4Ard/S3Mvvc=";
+    rev = "98897e29fcfc81e2b12e487e4154ac99188330c4";
+    hash = "sha256-NFKhMJj/quvN3mR7lmxzA9w46KhX92iG0rQA9qDeS8I=";
     fetchSubmodules = true;
   };