diff --git a/pkgs/by-name/ze/zerofs/package.nix b/pkgs/by-name/ze/zerofs/package.nix
index 2361cd1a2b31..c54af266ea04 100644
--- a/pkgs/by-name/ze/zerofs/package.nix
+++ b/pkgs/by-name/ze/zerofs/package.nix
@@ -11,23 +11,27 @@
 
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "zerofs";
-  version = "0.20.0";
+  version = "0.22.1";
 
   src = fetchFromGitHub {
     owner = "Barre";
     repo = "ZeroFS";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-8iPHIUESModoNFk8XEWjHZOGBOPxhOGM9gHaljWyqZg=";
+    hash = "sha256-YdqZV8TdodSKP3h2Qa0+Xi7bfGKrtGq625Oco+UjIpU=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/zerofs";
 
-  cargoHash = "sha256-JZerQne+jW6xjH13dQe3g1dD07BP3j+1DSF+a/SgGXc=";
+  cargoHash = "sha256-rPa8XmApLClhJ2oAQxEoQL2Hd+8QlJAOZVw+kzS70KY=";
 
   nativeBuildInputs = [ cmake ];
 
   buildInputs = [ rust-jemalloc-sys ];
 
+  env = {
+    RUSTFLAGS = "--cfg tokio_unstable";
+  };
+
   doInstallCheck = true;
   nativeInstallCheckInputs = [ versionCheckHook ];
   versionCheckProgramArg = "--version";