diff --git a/pkgs/development/compilers/sbcl/default.nix b/pkgs/development/compilers/sbcl/default.nix
index 3aa3ac6aadb..9b7ce4120c4 100644
--- a/pkgs/development/compilers/sbcl/default.nix
+++ b/pkgs/development/compilers/sbcl/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, writeText, sbclBootstrap
+{ stdenv, fetchurl, fetchgit, writeText, sbclBootstrap
 , sbclBootstrapHost ? "${sbclBootstrap}/bin/sbcl --disable-debugger --no-userinit --no-sysinit"
 , threadSupport ? (stdenv.isi686 || stdenv.isx86_64 || "aarch64-linux" == stdenv.system)
   # Meant for sbcl used for creating binaries portable to non-NixOS via save-lisp-and-die.
@@ -9,11 +9,16 @@
 
 stdenv.mkDerivation rec {
   name    = "sbcl-${version}";
-  version = "1.4.1";
+  version = "1.4.1.0.20171104";
 
-  src = fetchurl {
-    url    = "mirror://sourceforge/project/sbcl/sbcl/${version}/${name}-source.tar.bz2";
-    sha256 = "1qdaf847g5p2zgq00ax5hdy4r82bl3ss382psd0kkca1h83cdiz8";
+  #src = fetchurl {
+  #  url    = "mirror://sourceforge/project/sbcl/sbcl/${version}/${name}-source.tar.bz2";
+  #  sha256 = "1qdaf847g5p2zgq00ax5hdy4r82bl3ss382psd0kkca1h83cdiz8";
+  #};
+  src = fetchgit {
+    url    = "https://git.code.sf.net/p/sbcl/sbcl";
+    sha256 = "1fq34h8h8pax5q17w84kwv5amiaag3ikkq3cdmb31r64736mxi6r";
+    rev    = "11aa57d23bc464d6a6867a80e946907404ceadd1";
   };
 
   patchPhase = ''
@@ -35,7 +40,7 @@ stdenv.mkDerivation rec {
     # SBCL checks whether files are up-to-date in many places..
     # Unfortunately, same timestamp is not good enough
     sed -e 's@> x y@>= x y@' -i contrib/sb-aclrepl/repl.lisp
-    sed -e '/(date)/i((= date 2208988801) 2208988800)' -i contrib/asdf/asdf.lisp
+    #sed -e '/(date)/i((= date 2208988801) 2208988800)' -i contrib/asdf/asdf.lisp
     sed -i src/cold/slam.lisp -e \
       '/file-write-date input/a)'
     sed -i src/cold/slam.lisp -e \