diff --git a/pkgs/development/ocaml-modules/cohttp/default.nix b/pkgs/development/ocaml-modules/cohttp/default.nix
index 2cd68dc9cb1e..f95c44f66725 100644
--- a/pkgs/development/ocaml-modules/cohttp/default.nix
+++ b/pkgs/development/ocaml-modules/cohttp/default.nix
@@ -6,13 +6,13 @@
 
 buildDunePackage rec {
   pname = "cohttp";
-  version = "5.3.0";
+  version = "5.3.1";
 
   minimalOCamlVersion = "4.08";
 
   src = fetchurl {
     url = "https://github.com/mirage/ocaml-cohttp/releases/download/v${version}/cohttp-${version}.tbz";
-    hash = "sha256-s72RxwTl6lEOkkuDqy7eH8RqLM5Eiw+M70iDuaFu7d0=";
+    hash = "sha256-9eJz08Lyn/R71+Ftsj4fPWzQGkC+ACCJhbxDTIjUV2s=";
   };
 
   postPatch = ''