diff --git a/pkgs/development/ocaml-modules/timedesc/default.nix b/pkgs/development/ocaml-modules/timedesc/default.nix
index 5d46988949d0..c0ff0b6897c2 100644
--- a/pkgs/development/ocaml-modules/timedesc/default.nix
+++ b/pkgs/development/ocaml-modules/timedesc/default.nix
@@ -9,13 +9,13 @@
   timedesc-tzlocal,
 }:
 
-buildDunePackage rec {
+buildDunePackage (finalAttrs: {
   pname = "timedesc";
-  version = "3.1.0";
+  version = "3.1.2";
 
   src = fetchurl {
-    url = "https://github.com/daypack-dev/timere/releases/download/timedesc-${version}/timedesc-${version}.tar.gz";
-    hash = "sha256-nEachJymJC8TP/Ha2rOFU3n09rxVlIZYmgQnYiNCiHE=";
+    url = "https://github.com/daypack-dev/timere/releases/download/timedesc-${finalAttrs.version}/timedesc-${finalAttrs.version}.tar.gz";
+    hash = "sha256-hXdijGY0qu+pLR2XtK/KL9gXvCstbZedo1379lqA1r0=";
   };
 
   sourceRoot = ".";
@@ -34,4 +34,4 @@ buildDunePackage rec {
     license = lib.licenses.mit;
     maintainers = [ lib.maintainers.vbgl ];
   };
-}
+})
diff --git a/pkgs/development/ocaml-modules/timedesc/tzlocal.nix b/pkgs/development/ocaml-modules/timedesc/tzlocal.nix
index 5d4cabd3b493..1f50c00413f2 100644
--- a/pkgs/development/ocaml-modules/timedesc/tzlocal.nix
+++ b/pkgs/development/ocaml-modules/timedesc/tzlocal.nix
@@ -8,8 +8,6 @@ buildDunePackage {
 
   inherit (timedesc) version src sourceRoot;
 
-  minimalOCamlVersion = "4.08";
-
   meta = timedesc.meta // {
     description = "Virtual library for Timedesc local time zone detection backends";
   };