diff --git a/pkgs/development/ocaml-modules/duration/default.nix b/pkgs/development/ocaml-modules/duration/default.nix
index a547a919c31..ccddecf2898 100644
--- a/pkgs/development/ocaml-modules/duration/default.nix
+++ b/pkgs/development/ocaml-modules/duration/default.nix
@@ -2,13 +2,13 @@
 
 buildDunePackage rec {
   pname = "duration";
-  version = "0.1.3";
+  version = "0.2.0";
 
   useDune2 = true;
 
   src = fetchurl {
     url = "https://github.com/hannesm/duration/releases/download/${version}/duration-${version}.tbz";
-    sha256 = "0m9r0ayhpl98g9vdxrbjdcllns274jilic5v8xj1x7dphw21p95h";
+    sha256 = "sha256-rRT7daWm9z//fvFyEXiSXuVVzw8jsj46sykYS8DBzmk=";
   };
 
   doCheck = lib.versionAtLeast ocaml.version "4.05";