diff --git a/pkgs/development/ocaml-modules/eliom/default.nix b/pkgs/development/ocaml-modules/eliom/default.nix
index 23959306d2d..ef0a88fb228 100644
--- a/pkgs/development/ocaml-modules/eliom/default.nix
+++ b/pkgs/development/ocaml-modules/eliom/default.nix
@@ -8,12 +8,12 @@ assert stdenv.lib.versionAtLeast (stdenv.lib.getVersion ocaml) "4";
 stdenv.mkDerivation rec
 {
   pname = "eliom";
-  version = "4.1.0";
+  version = "4.2.0";
   name = "${pname}-${version}";
 
   src = fetchurl {
-    url = https://github.com/ocsigen/eliom/archive/4.1.0.tar.gz;
-    sha256 = "10v7mrq3zsbxdlg8k8xif777mbvcdpabvnd1g7p2yqivr7f1qm24";
+    url = https://github.com/ocsigen/eliom/archive/4.2.tar.gz;
+    sha256 = "0gbqzgn6xgpq6irz2sfr92qj3hjcwl45wy0inc4ps5r15nvq1l9h";
   };
 
   patches = [ ./camlp4.patch ];