diff --git a/pkgs/development/ocaml-modules/metrics/default.nix b/pkgs/development/ocaml-modules/metrics/default.nix
index b1c921ac548c..421f7b6e911a 100644
--- a/pkgs/development/ocaml-modules/metrics/default.nix
+++ b/pkgs/development/ocaml-modules/metrics/default.nix
@@ -8,13 +8,13 @@
 
 buildDunePackage rec {
   pname = "metrics";
-  version = "0.4.1";
+  version = "0.5.0";
 
   minimalOCamlVersion = "4.04";
 
   src = fetchurl {
     url = "https://github.com/mirage/metrics/releases/download/v${version}/metrics-${version}.tbz";
-    sha256 = "sha256-d+DCD7XB0GED27DsC8YEW+48YcAK0EI8l4Uqx/PGFE0=";
+    sha256 = "sha256-3zVjgJCdBkYbzQl+9gY8qfPFE2X0dqeXwDZktTwFcV0=";
   };
 
   propagatedBuildInputs = [ fmt ];