diff --git a/pkgs/development/ocaml-modules/odoc-parser/default.nix b/pkgs/development/ocaml-modules/odoc-parser/default.nix
index 90e99427ec09..5d22d2d71238 100644
--- a/pkgs/development/ocaml-modules/odoc-parser/default.nix
+++ b/pkgs/development/ocaml-modules/odoc-parser/default.nix
@@ -1,23 +1,22 @@
-{ lib, fetchurl, buildDunePackage, ocaml, astring, result, camlp-streams, version ? "2.0.0" }:
+{ lib, fetchurl, buildDunePackage, ocaml, astring, result, camlp-streams, version ? "2.4.2" }:
 
 let param = {
+  "2.4.2" = {
+    sha256 = "sha256-Vjz9uybsijDnN6nPKFoG4LuulT9I4lu7D2n3qZwrpAs=";
+  };
   "2.0.0" = {
     sha256 = "sha256-QHkZ+7DrlXYdb8bsZ3dijZSqGQc0O9ymeLGIC6+zOSI=";
-    extraBuildInputs = [ camlp-streams ];
   };
   "1.0.1" = {
     sha256 = "sha256-orvo5CAbYOmAurAeluQfK6CwW6P1C0T3WDfoovuQfSw=";
-    extraBuildInputs = [ camlp-streams ];
   };
   "1.0.0" = {
     sha256 = "sha256-tqoI6nGp662bK+vE2h7aDXE882dObVfRBFnZNChueqE=";
     max_version = "5.0";
-    extraBuildInputs = [];
   };
   "0.9.0" = {
     sha256 = "sha256-3w2tG605v03mvmZsS2O5c71y66O3W+n3JjFxIbXwvXk=";
     max_version = "5.0";
-    extraBuildInputs = [];
   };
 }."${version}"; in
 
@@ -31,11 +30,14 @@ buildDunePackage rec {
   minimalOCamlVersion = "4.02";
 
   src = fetchurl {
-    url = "https://github.com/ocaml-doc/odoc-parser/releases/download/${version}/odoc-parser-${version}.tbz";
+    url = if lib.versionAtLeast version "2.4"
+      then "https://github.com/ocaml/odoc/releases/download/${version}/odoc-${version}.tbz"
+      else "https://github.com/ocaml-doc/odoc-parser/releases/download/${version}/odoc-parser-${version}.tbz";
     inherit (param) sha256;
   };
 
-  propagatedBuildInputs = [ astring result ] ++ param.extraBuildInputs;
+  propagatedBuildInputs = [ astring result ] ++
+    lib.optional (lib.versionAtLeast version "1.0.1") camlp-streams;
 
   meta = {
     description = "Parser for Ocaml documentation comments";
diff --git a/pkgs/development/ocaml-modules/odoc/default.nix b/pkgs/development/ocaml-modules/odoc/default.nix
index 18be9801a9c0..92d605be157a 100644
--- a/pkgs/development/ocaml-modules/odoc/default.nix
+++ b/pkgs/development/ocaml-modules/odoc/default.nix
@@ -1,4 +1,5 @@
 { lib, fetchurl, buildDunePackage, ocaml
+, ocaml-crunch
 , astring, cmdliner, cppo, fpath, result, tyxml
 , markup, yojson, sexplib0, jq
 , odoc-parser, ppx_expect, bash, fmt
@@ -6,14 +7,9 @@
 
 buildDunePackage rec {
   pname = "odoc";
-  version = "2.2.1";
+  inherit (odoc-parser) version src;
 
-  src = fetchurl {
-    url = "https://github.com/ocaml/odoc/releases/download/${version}/odoc-${version}.tbz";
-    sha256 = "sha256-F4blO/CCT+HHx7gdKn2EaEal0RZ3lp5jljYfd6OBaAM=";
-  };
-
-  nativeBuildInputs = [ cppo ];
+  nativeBuildInputs = [ cppo ocaml-crunch ];
   buildInputs = [ astring cmdliner fpath result tyxml odoc-parser fmt ];
 
   nativeCheckInputs = [ bash jq ];