diff --git a/pkgs/development/ocaml-modules/nocrypto/default.nix b/pkgs/development/ocaml-modules/nocrypto/default.nix
deleted file mode 100644
index e34e3ae01462..000000000000
--- a/pkgs/development/ocaml-modules/nocrypto/default.nix
+++ /dev/null
@@ -1,73 +0,0 @@
-{ stdenv, lib, fetchurl, fetchpatch, ocaml, findlib, ocamlbuild, topkg
-, cpuid, ocb-stubblr, sexplib
-, cstruct, zarith, ppx_sexp_conv, ppx_deriving, writeScriptBin
-, cstruct-lwt ? null
-}:
-
-with lib;
-let
-  withLwt = cstruct-lwt != null;
-  # the build system will call 'cc' with no way to override
-  # this is wrong when we're cross-compiling, so insert a wrapper
-  cc-wrapper = writeScriptBin "cc" ''
-    set -e
-    $CC "$@"
-  '';
-in
-
-if versionOlder ocaml.version "4.08"
-then throw "nocrypto is not available for OCaml ${ocaml.version}"
-else
-
-stdenv.mkDerivation rec {
-  pname = "ocaml${ocaml.version}-nocrypto";
-  version = "0.5.4";
-
-  src = fetchurl {
-    url = "https://github.com/mirleft/ocaml-nocrypto/releases/download/v${version}/nocrypto-${version}.tbz";
-    sha256 = "0zshi9hlhcz61n5z1k6fx6rsi0pl4xgahsyl2jp0crqkaf3hqwlg";
-  };
-
-  patches = [
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/nocrypto/nocrypto.0.5.4-1/files/0001-add-missing-runtime-dependencies-in-_tags.patch";
-      sha256 = "1asybwj3rl07b4q4cxwy80a7j17j0i5vzz77p38hymilhc2ky7xn";
-    })
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/nocrypto/nocrypto.0.5.4-1/files/0002-add-ppx_sexp_conv-as-a-runtime-dependency-in-the-pac.patch";
-      sha256 = "0zmp64n5fgkawpkyw0vv0bg0i2c3xbsxqy17vwy92nf5rbardi1r";
-    })
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/nocrypto/nocrypto.0.5.4-1/files/0003-Auto-detect-ppx_sexp_conv-runtime-library.patch";
-      sha256 = "0lngbg5gyd5gs56lbjh6g86cps1y8x1xsqzi0vi1v28al1gn5dhw";
-    })
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/nocrypto/nocrypto.0.5.4-1/files/0004-pack-package-workaround-ocamlbuild-272.patch";
-      sha256 = "16k0w78plvqhl17qiqq1mckxhhcdysqgs94l54a1bn0l6fx3rvb9";
-    })
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/nocrypto/nocrypto.0.5.4-1/files/0005-use-modern-cstruct-findlib.patch";
-      sha256 = "021k38zbdidw6g7j4vjxlnbsrnzq07bnavxzdjq23nbwlifs2nq9";
-    })
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/ocaml/opam-repository/master/packages/nocrypto/nocrypto.0.5.4-1/files/0006-explicit-dependency-on-sexplib.patch";
-      sha256 = "15kd0qgi96yxr3qkmaqny591l0s6qmwpprxd5xdx9qwv72hq813z";
-    })
-  ];
-
-  nativeBuildInputs = [ ocaml findlib ocamlbuild cc-wrapper ];
-  buildInputs = [ topkg cpuid ocb-stubblr ocamlbuild ];
-  propagatedBuildInputs = [ cstruct ppx_deriving ppx_sexp_conv sexplib zarith ] ++ optional withLwt cstruct-lwt;
-
-  strictDeps = true;
-
-  buildPhase = "${topkg.buildPhase} --accelerate false --with-lwt ${boolToString withLwt}";
-  inherit (topkg) installPhase;
-
-  meta = {
-    homepage = "https://github.com/mirleft/ocaml-nocrypto";
-    description = "Simplest possible crypto to support TLS";
-    license = lib.licenses.bsd2;
-    maintainers = with lib.maintainers; [ vbgl ];
-  };
-}
diff --git a/pkgs/development/ocaml-modules/wodan/default.nix b/pkgs/development/ocaml-modules/wodan/default.nix
index 64ca29f20308..f33d7b9861f6 100644
--- a/pkgs/development/ocaml-modules/wodan/default.nix
+++ b/pkgs/development/ocaml-modules/wodan/default.nix
@@ -1,5 +1,5 @@
 { lib, buildDunePackage, fetchFromGitHub, lwt_ppx, ppx_cstruct, optint
-, checkseum, diet, bitv, nocrypto, logs, lru, io-page, mirage-block }:
+, checkseum, diet, bitv, logs, lru, io-page, mirage-block }:
 
 buildDunePackage rec {
   pname = "wodan";
@@ -24,7 +24,7 @@ buildDunePackage rec {
     checkseum
     diet
     bitv
-    nocrypto
+    /* nocrypto */
     logs
     lru
     io-page
@@ -32,6 +32,7 @@ buildDunePackage rec {
   ];
 
   meta = with lib; {
+    broken = true; # nocrypto is no longer available in nixpkgs
     inherit (src.meta) homepage;
     description = "A flash-friendly, safe and flexible filesystem library";
     license = licenses.isc;
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 75719cf6b59b..55817beb5c87 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -921,8 +921,6 @@ let
 
     netchannel = callPackage ../development/ocaml-modules/netchannel { };
 
-    nocrypto =  callPackage ../development/ocaml-modules/nocrypto { };
-
     nonstd =  callPackage ../development/ocaml-modules/nonstd { };
 
     notty = callPackage ../development/ocaml-modules/notty { };