diff --git a/pkgs/development/ocaml-modules/sawja/default.nix b/pkgs/development/ocaml-modules/sawja/default.nix
index 01bc71928469..d0dba6c2ceec 100644
--- a/pkgs/development/ocaml-modules/sawja/default.nix
+++ b/pkgs/development/ocaml-modules/sawja/default.nix
@@ -1,10 +1,10 @@
-{stdenv, fetchurl, which, perl, ocaml, findlib, javalib, camlp4 }:
+{stdenv, fetchurl, which, perl, ocaml, findlib, javalib }:
 
 assert stdenv.lib.versionAtLeast (stdenv.lib.getVersion ocaml) "3.12";
 
 let
   pname = "sawja";
-  version = "1.5.6";
+  version = "1.5.7";
   webpage = "http://sawja.inria.fr/";
 in
 stdenv.mkDerivation {
@@ -12,11 +12,11 @@ stdenv.mkDerivation {
   name = "ocaml${ocaml.version}-${pname}-${version}";
 
   src = fetchurl {
-    url = https://gforge.inria.fr/frs/download.php/file/37819/sawja-1.5.6.tar.bz2;
-    sha256 = "0dkfdc8h94r7kj4p8q57fz7fssypgmjrix8xff0va7x1nya5sdp3";
+    url = https://gforge.inria.fr/frs/download.php/file/38117/sawja-1.5.7.tar.bz2;
+    sha256 = "08xv1bq4pragc1g93w4dnbn0mighcjwfp3ixj9jzmhka2vzqm4cc";
   };
 
-  buildInputs = [ which perl ocaml findlib camlp4 ];
+  buildInputs = [ which perl ocaml findlib ];
 
   patches = [ ./configure.sh.patch ./Makefile.config.example.patch ];