diff --git a/pkgs/development/ocaml-modules/irmin/ppx.nix b/pkgs/development/ocaml-modules/irmin/ppx.nix
index 14ff89f39627..49c6033695be 100644
--- a/pkgs/development/ocaml-modules/irmin/ppx.nix
+++ b/pkgs/development/ocaml-modules/irmin/ppx.nix
@@ -9,11 +9,11 @@
 
 buildDunePackage rec {
   pname = "ppx_irmin";
-  version = "3.10.0";
+  version = "3.11.0";
 
   src = fetchurl {
     url = "https://github.com/mirage/irmin/releases/download/${version}/irmin-${version}.tbz";
-    hash = "sha256-kqneegoqNcL+ugw1qAax8N8kwcDRUWTuvz+RkpbSZxU=";
+    hash = "sha256-CZlvvMLEPhF6m9jpAoxjXoHMyyZNXgLUJauLBrus29s=";
   };
 
   minimalOCamlVersion = "4.10";