diff --git a/pkgs/development/ocaml-modules/react/default.nix b/pkgs/development/ocaml-modules/react/default.nix
index 943e5e1e8dc..f9fe95b89dc 100644
--- a/pkgs/development/ocaml-modules/react/default.nix
+++ b/pkgs/development/ocaml-modules/react/default.nix
@@ -1,10 +1,10 @@
 {stdenv, fetchurl, ocaml, findlib, opam}:
 
 stdenv.mkDerivation {
-  name = "ocaml-react-1.1.0";
+  name = "ocaml-react-1.2.0";
 
   src = fetchurl {
-    url = http://erratique.ch/software/react/releases/react-1.1.0.tbz;
+    url = http://erratique.ch/software/react/releases/react-1.2.0.tbz;
     sha256 = "1gymn8hy7ga0l9qymmb1jcnnkqvy7l2zr87xavzqz0dfi9ci8dm7";
   };