diff --git a/pkgs/development/ocaml-modules/kqueue/default.nix b/pkgs/development/ocaml-modules/kqueue/default.nix
index 6666d58cfb1f..2ea64493f948 100644
--- a/pkgs/development/ocaml-modules/kqueue/default.nix
+++ b/pkgs/development/ocaml-modules/kqueue/default.nix
@@ -8,13 +8,13 @@
 
 buildDunePackage rec {
   pname = "kqueue";
-  version = "0.3.0";
+  version = "0.4.0";
 
   minimalOCamlVersion = "4.12";
 
   src = fetchurl {
     url = "https://github.com/anuragsoni/kqueue-ml/releases/download/${version}/kqueue-${version}.tbz";
-    hash = "sha256-MKRCyN6q9euTEgHIhldGGH8FwuLblWYNG+SiCMWBP6Y=";
+    hash = "sha256-fJHhmAp0EFzR9JH93a+EHy1auwSBKZV/XcBQLCedJLc=";
   };
 
   buildInputs = [