diff --git a/pkgs/development/ocaml-modules/pcap-format/default.nix b/pkgs/development/ocaml-modules/pcap-format/default.nix
index ffd183787793..e73492830893 100644
--- a/pkgs/development/ocaml-modules/pcap-format/default.nix
+++ b/pkgs/development/ocaml-modules/pcap-format/default.nix
@@ -1,36 +1,32 @@
 { lib, buildDunePackage, fetchurl
-, ppx_cstruct, ppx_tools
-, cstruct, ounit, mmap, stdlib-shims
+, ppx_cstruct
+, cstruct
+, ounit
 }:
 
 buildDunePackage rec {
   pname = "pcap-format";
-  version = "0.5.2";
+  version = "0.6.0";
 
-  minimumOCamlVersion = "4.03";
-
-  # due to cstruct
-  useDune2 = true;
+  minimalOCamlVersion = "4.08";
+  duneVersion = "3";
 
   src = fetchurl {
-    url = "https://github.com/mirage/ocaml-pcap/releases/download/${version}/${pname}-${version}.tbz";
-    sha256 = "14c5rpgglyz41jic0fg0xa22d2w1syb86kva22y9fi7aqj9vm31f";
+    url = "https://github.com/mirage/ocaml-pcap/releases/download/v${version}/${pname}-${version}.tbz";
+    hash = "sha256-LUjy8Xm6VsnMq1FHKzmJg7uorkTv7cOTsoLwmtNHkaY=";
   };
 
   buildInputs = [
-    ppx_tools
     ppx_cstruct
   ];
 
   propagatedBuildInputs = [
     cstruct
-    stdlib-shims
   ];
 
   doCheck = true;
   checkInputs = [
     ounit
-    mmap
   ];
 
   meta = with lib; {