diff --git a/pkgs/development/ocaml-modules/backoff/default.nix b/pkgs/development/ocaml-modules/backoff/default.nix
index 5f8f7a12d79b..75ee51ede5c7 100644
--- a/pkgs/development/ocaml-modules/backoff/default.nix
+++ b/pkgs/development/ocaml-modules/backoff/default.nix
@@ -2,11 +2,11 @@
 
 buildDunePackage rec {
   pname = "backoff";
-  version = "0.1.0";
+  version = "0.1.1";
 
   src = fetchurl {
     url = "https://github.com/ocaml-multicore/backoff/releases/download/${version}/backoff-${version}.tbz";
-    hash = "sha256-EaSseCKekNE03gaNiqh5Y11r8TF9XulR9AZboPWMIwA=";
+    hash = "sha256-AL6jEbInsbwKVYedpNzjix/YRHtOTizxk6aVNzesnwM=";
   };
 
   doCheck = true;
@@ -20,5 +20,5 @@ buildDunePackage rec {
     maintainers = [ lib.maintainers.vbgl ];
   };
 
-  minimalOCamlVersion = "4.13";
+  minimalOCamlVersion = "4.12";
 }