diff --git a/pkgs/development/compilers/sbcl/default.nix b/pkgs/development/compilers/sbcl/default.nix
index 381e7b1d84ef..1ef6dd065705 100644
--- a/pkgs/development/compilers/sbcl/default.nix
+++ b/pkgs/development/compilers/sbcl/default.nix
@@ -10,11 +10,11 @@
 
 stdenv.mkDerivation rec {
   name    = "sbcl-${version}";
-  version = "1.4.12";
+  version = "1.4.13";
 
   src = fetchurl {
     url    = "mirror://sourceforge/project/sbcl/sbcl/${version}/${name}-source.tar.bz2";
-    sha256 = "0maa4h5zdykq050hdqk5wd74dhl6k7br3qrhfd4f2387skk8ky7a";
+    sha256 = "120rnnz8367lk7ljqlf8xidm4b0d738xqsib4kq0q5ms5r7fzgvm";
   };
 
   buildInputs = [texinfo];
@@ -49,11 +49,6 @@ stdenv.mkDerivation rec {
       '/date defaulted-source/i(or (and (= 2208988801 (file-write-date defaulted-source-truename)) (= 2208988801 (file-write-date defaulted-fasl-truename)))'
 
     # Fix the tests
-    sed -e '/deftest pwent/inil' -i contrib/sb-posix/posix-tests.lisp
-    sed -e '/deftest grent/inil' -i contrib/sb-posix/posix-tests.lisp
-    sed -e '/deftest .*ent.non-existing/,+5d' -i contrib/sb-posix/posix-tests.lisp
-    sed -e '/deftest \(pw\|gr\)ent/,+3d' -i contrib/sb-posix/posix-tests.lisp
-
     sed -e '5,$d' -i contrib/sb-bsd-sockets/tests.lisp
     sed -e '5,$d' -i contrib/sb-simple-streams/*test*.lisp