diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3b0c1de13cbf..5ba86bc6dc17 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2541,7 +2541,7 @@ let
   ocamlPackages_3_10_0 = mkOcamlPackages ocaml_3_10_0 pkgs.ocamlPackages_3_10_0;
   ocamlPackages_3_11_2 = mkOcamlPackages ocaml_3_11_2 pkgs.ocamlPackages_3_11_2;
   ocamlPackages_3_12_1 = mkOcamlPackages ocaml_3_12_1 pkgs.ocamlPackages_3_12_1;
-  ocamlPackages_4_00_0 = mkOcamlPackages ocaml_4_00_0 pkgs.ocamlPackages_4_00_0;
+  ocamlPackages_4_00_0 = mkOcamlPackages ocaml_4_00_1 pkgs.ocamlPackages_4_00_0;
 
   ocaml_make = callPackage ../development/ocaml-modules/ocamlmake { };