diff --git a/pkgs/development/ocaml-modules/bisect_ppx/default.nix b/pkgs/development/ocaml-modules/bisect_ppx/default.nix
index ddeda86e9bf..48b9684902c 100644
--- a/pkgs/development/ocaml-modules/bisect_ppx/default.nix
+++ b/pkgs/development/ocaml-modules/bisect_ppx/default.nix
@@ -2,13 +2,13 @@
 
 buildDunePackage rec {
   pname = "bisect_ppx";
-  version = "2.6.1";
+  version = "2.8.1";
 
   src = fetchFromGitHub {
     owner = "aantron";
     repo = "bisect_ppx";
     rev = version;
-    sha256 = "sha256-YeLDlH3mUbVEY4OmzlrvSwVUav3uMtSsTFlOsQKnz84=";
+    sha256 = "sha256-pOeeSxzUF1jXQjA71atSZALdgQ2NB9qpKo5iaDnPwhQ=";
   };
 
   minimumOCamlVersion = "4.08";