diff --git a/pkgs/development/ocaml-modules/tls/default.nix b/pkgs/development/ocaml-modules/tls/default.nix
index 0c3eaf33e78..222496fc6d1 100644
--- a/pkgs/development/ocaml-modules/tls/default.nix
+++ b/pkgs/development/ocaml-modules/tls/default.nix
@@ -4,14 +4,14 @@
 , hacl_x25519, fiat-p256, hkdf, logs, alcotest }:
 
 buildDunePackage rec {
-  minimumOCamlVersion = "4.07";
+  minimumOCamlVersion = "4.08";
 
-  version = "0.12.1";
+  version = "0.12.2";
   pname = "tls";
 
   src = fetchurl {
     url = "https://github.com/mirleft/ocaml-tls/releases/download/v${version}/tls-v${version}.tbz";
-    sha256 = "09jhzjhni3il5bmy2c6gylmg9s45ppckjc7nm5nyg5dbm699cwxg";
+    sha256 = "1wpgs0cd79wl4lnn1i44xjn8prha793nrbyv68zjiqpq3gmpyy3k";
   };
 
   useDune2 = true;