diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 14625f422cbb..3d3a5be9def0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -30827,7 +30827,7 @@ with pkgs;
   };
 
   monotoneViz = callPackage ../applications/version-management/monotone-viz {
-    ocamlPackages = ocaml-ng.ocamlPackages_4_01_0;
+    ocamlPackages = ocaml-ng.ocamlPackages_4_05;
   };
 
   monitor = callPackage ../applications/system/monitor {