diff --git a/pkgs/development/ocaml-modules/uchar/default.nix b/pkgs/development/ocaml-modules/uchar/default.nix
index c2e5a1fc9298..6b27f00fb150 100644
--- a/pkgs/development/ocaml-modules/uchar/default.nix
+++ b/pkgs/development/ocaml-modules/uchar/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, ocaml, ocamlbuild, opam }:
 
 stdenv.mkDerivation {
-  name = "ocaml${ocaml.version}-uchar-0.0.1";
+  name = "ocaml${ocaml.version}-uchar-0.0.2";
 
   src = fetchurl {
-    url = https://github.com/ocaml/uchar/releases/download/v0.0.1/uchar-0.0.1.tbz;
-    sha256 = "0ficw1x7ymbd6m8hqw3w1aycwm1hbwd6bad3c5pspwnzh3qlikhi";
+    url = https://github.com/ocaml/uchar/releases/download/v0.0.2/uchar-0.0.2.tbz;
+    sha256 = "1w2saw7zanf9m9ffvz2lvcxvlm118pws2x1wym526xmydhqpyfa7";
   };
 
   unpackCmd = "tar xjf $src";