diff --git a/pkgs/tools/filesystems/9pfs/default.nix b/pkgs/tools/filesystems/9pfs/default.nix
index 5ca592aa456..abb8f695ebc 100644
--- a/pkgs/tools/filesystems/9pfs/default.nix
+++ b/pkgs/tools/filesystems/9pfs/default.nix
@@ -1,39 +1,25 @@
-{ lib, stdenv, fetchFromGitHub, fuse }:
+{ lib, stdenv, fetchFromGitHub, pkg-config, fuse, gitUpdater }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   pname = "9pfs";
-  version = "unstable-2015-09-18";
+  version = "0.3";
 
   src = fetchFromGitHub {
-    owner = "mischief";
+    owner = "ftrvxmtrx";
     repo = "9pfs";
-    rev = "7f4ca4cd750d650c1215b92ac3cc2a28041960e4";
-    sha256 = "007s2idsn6bspmfxv1qabj39ggkgvn6gwdbhczwn04lb4c6gh3xc";
+    rev = version;
+    sha256 = "sha256-ywWG/H2ilt36mjlDSgIzYpardCFXpmbLiml6wy47XuA=";
   };
 
-  # Upstream development has stopped and is no longer accepting patches
-  # https://github.com/mischief/9pfs/pull/3
-  patches = [ ./fix-darwin-build.patch ];
-
-  preConfigure =
-    ''
-      substituteInPlace Makefile --replace '-g bin' ""
-      installFlagsArray+=(BIN=$out/bin MAN=$out/share/man/man1)
-      mkdir -p $out/bin $out/share/man/man1
-    '';
-
+  makeFlags = [ "BIN=$(out)/bin" "MAN=$(out)/share/man/man1" ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ fuse ];
-
-  # Workaround build failure on -fno-common toolchains like upstream
-  # gcc-10. Otherwise build fails as:
-  #   ld: lib/auth_rpc.o:/build/source/lib/../9pfs.h:35: multiple definition of
-  #     `logfile'; 9pfs.o:/build/source/9pfs.h:35: first defined here
-  env.NIX_CFLAGS_COMPILE = "-fcommon";
-
   enableParallelBuilding = true;
 
+  passthru.updateScript = gitUpdater { };
+
   meta = {
-    homepage = "https://github.com/mischief/9pfs";
+    homepage = "https://github.com/ftrvxmtrx/9pfs";
     description = "FUSE-based client of the 9P network filesystem protocol";
     maintainers = [ lib.maintainers.eelco ];
     platforms = lib.platforms.unix;
diff --git a/pkgs/tools/filesystems/9pfs/fix-darwin-build.patch b/pkgs/tools/filesystems/9pfs/fix-darwin-build.patch
deleted file mode 100644
index a565248f19d..00000000000
--- a/pkgs/tools/filesystems/9pfs/fix-darwin-build.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From 6b7863b51c97f8ecd9a93fc4347f8938f9b5c05f Mon Sep 17 00:00:00 2001
-From: midchildan <git@midchildan.org>
-Date: Tue, 30 Mar 2021 22:21:51 +0900
-Subject: [PATCH] build: fix build for macOS
-
----
- 9pfs.c | 4 ++--
- libc.h | 4 ++++
- 2 files changed, 6 insertions(+), 2 deletions(-)
-
-diff --git a/9pfs.c b/9pfs.c
-index 2c481bd..f5c487c 100644
---- a/9pfs.c
-+++ b/9pfs.c
-@@ -30,7 +30,7 @@
- enum
- {
- 	CACHECTLSIZE = 8, /* sizeof("cleared\n") - 1 */
--	MSIZE = 8192
-+	MSIZE_9P = 8192
- };
- 
- void	dir2stat(struct stat*, Dir*);
-@@ -505,7 +505,7 @@ main(int argc, char *argv[])
- 		freeaddrinfo(ainfo);
- 
- 	init9p();
--	msize = _9pversion(MSIZE);
-+	msize = _9pversion(MSIZE_9P);
- 	if(doauth){
- 		authfid = _9pauth(AUTHFID, user, NULL);
- 		ai = auth_proxy(authfid, auth_getkey, "proto=p9any role=client");
-diff --git a/libc.h b/libc.h
-index 099adba..aac03c5 100644
---- a/libc.h
-+++ b/libc.h
-@@ -61,6 +61,10 @@ typedef unsigned char uchar;
- typedef unsigned long long uvlong;
- typedef long long vlong;
- 
-+#ifndef __GLIBC__
-+typedef unsigned long ulong;
-+#endif
-+
- typedef
- struct Qid
- {