diff --git a/pkgs/development/ocaml-modules/x509/default.nix b/pkgs/development/ocaml-modules/x509/default.nix
index 845581aa7cc..cea9d79333b 100644
--- a/pkgs/development/ocaml-modules/x509/default.nix
+++ b/pkgs/development/ocaml-modules/x509/default.nix
@@ -8,11 +8,11 @@ buildDunePackage rec {
   minimalOCamlVersion = "4.08";
 
   pname = "x509";
-  version = "0.16.0";
+  version = "0.16.2";
 
   src = fetchurl {
     url = "https://github.com/mirleft/ocaml-x509/releases/download/v${version}/x509-${version}.tbz";
-    sha256 = "sha256:159mhfwsiv08sj0zk7s3k813f0mc9vpziwpf6j9r32y3nizp59k7";
+    sha256 = "sha256-Zf/ZZjUAkeWe04XLmqMKgbxN/qe/Z1mpKM82veXVf2I=";
   };
 
   checkInputs = [ alcotest cstruct-unix ];