diff --git a/pkgs/development/ocaml-modules/janestreet/0.16.nix b/pkgs/development/ocaml-modules/janestreet/0.16.nix
index 8adec0c53cfa..2df4c08e7d58 100644
--- a/pkgs/development/ocaml-modules/janestreet/0.16.nix
+++ b/pkgs/development/ocaml-modules/janestreet/0.16.nix
@@ -5,6 +5,7 @@
 , lib
 , openssl
 , zstd
+, krb5
 }:
 
 with self;
@@ -426,6 +427,13 @@ with self;
     '';
   };
 
+  hex_encode = janePackage {
+    pname = "hex_encode";
+    hash = "sha256-jnsf5T1D1++AUdrato/NO3gTVXu14klXozHFIG9HH/o=";
+    meta.description = "Hexadecimal encoding library";
+    propagatedBuildInputs = [ core ppx_jane ounit ];
+  };
+
   higher_kinded = janePackage {
     pname = "higher_kinded";
     hash = "sha256-aCpYc7f4mrPsGp038YabEyw72cA6GbCKsok+5Hej5P0=";
@@ -525,6 +533,13 @@ with self;
     buildInputs = [ dune-configurator ppx_assert stdio ];
   };
 
+  krb = janePackage {
+    pname = "krb";
+    hash = "sha256-+XwYKwpl668fZ23YEbL1wW9PlaIIjbP/hHwNanf3dAY=";
+    meta.description = "A library for using Kerberos for both Rpc and Tcp communication";
+    propagatedBuildInputs = [ async base core env_config hex_encode ppx_jane protocol_version_header username_kernel dune-configurator krb5 ];
+  };
+
   lru_cache = janePackage {
     pname = "lru_cache";
     hash = "sha256-FqOBC4kBL9IuFIL4JrVU7iF1AUu+1R/CchR52eyEsa8=";
@@ -1184,6 +1199,13 @@ with self;
     propagatedBuildInputs = [ base ];
   };
 
+  username_kernel = janePackage {
+    pname = "username_kernel";
+    hash = "sha256-UvFL/M9OsD+SOs9MYMKiKzZilLJHzriop6SPA4bOhZQ=";
+    meta.description = "An identifier for a user";
+    propagatedBuildInputs = [ core ppx_jane ];
+  };
+
   variantslib = janePackage {
     pname = "variantslib";
     hash = "sha256-8NoNkyIP7iEEiei+Q1zrPoJjnWwhCsLsY1vgua22gnw=";
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 216d490972b0..64e3e12d7dba 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -730,7 +730,7 @@ let
       if lib.versionOlder "4.13.1" ocaml.version
       then import ../development/ocaml-modules/janestreet/0.16.nix {
         inherit self;
-        inherit (pkgs) bash fetchpatch fzf lib openssl zstd;
+        inherit (pkgs) bash fetchpatch fzf lib openssl zstd krb5;
       }
       else if lib.versionOlder "4.10.2" ocaml.version
       then import ../development/ocaml-modules/janestreet/0.15.nix {