diff --git a/pkgs/development/libraries/libressl/2.4.nix b/pkgs/development/libraries/libressl/2.4.nix
index 43f9244d7a8..6db9df2a59e 100644
--- a/pkgs/development/libraries/libressl/2.4.nix
+++ b/pkgs/development/libraries/libressl/2.4.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "libressl-${version}";
-  version = "2.4.2";
+  version = "2.4.3";
 
   src = fetchurl {
     url    = "mirror://openbsd/LibreSSL/${name}.tar.gz";
-    sha256 = "1qyrcyzrrn6r9cqvm66ib72qyr65q4hrdyiq1vb24a6nwmwdg1sz";
+    sha256 = "03ln2ac9cv0pbz3109yjk7cr5yxqfk8ld6g61k9sgrs7wbrjcmxx";
   };
 
   enableParallelBuilding = true;