diff --git a/pkgs/development/ocaml-modules/conduit/0.10.0.nix b/pkgs/development/ocaml-modules/conduit/0.10.0.nix
deleted file mode 100644
index 4d1c43e0ae1..00000000000
--- a/pkgs/development/ocaml-modules/conduit/0.10.0.nix
+++ /dev/null
@@ -1,26 +0,0 @@
-{ stdenv, buildOcaml, fetchurl, ocaml, sexplib_p4, stringext, uri_p4, cstruct, ipaddr_p4
-, asyncSupport ? stdenv.lib.versionAtLeast ocaml.version "4.02"
-, async_p4 ? null, async_ssl_p4 ? null, lwt ? null
-}:
-
-buildOcaml rec {
-  name = "conduit";
-  version = "0.10.0";
-
-  src = fetchurl {
-    url = "https://github.com/mirage/ocaml-conduit/archive/v${version}.tar.gz";
-    sha256 = "1jz2skzsyg0axlkk9s6ahfblfrjx599wisyfs0cvn5dik9jqjadh";
-  };
-
-  propagatedBuildInputs = [ sexplib_p4 stringext uri_p4 cstruct ipaddr_p4 ];
-  buildInputs = stdenv.lib.optional (lwt != null) lwt
-             ++ stdenv.lib.optional (asyncSupport && async_p4 != null) async_p4
-             ++ stdenv.lib.optional (asyncSupport && async_ssl_p4 != null) async_ssl_p4;
-
-  meta = with stdenv.lib; {
-    homepage = https://github.com/mirage/ocaml-conduit;
-    description = "Resolve URIs into communication channels for Async or Lwt ";
-    license = licenses.mit;
-    maintainers = [ maintainers.ericbmerritt ];
-  };
-}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 72d41621c23..47181023539 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -160,14 +160,7 @@ let
 
     cohttp-lwt-unix = callPackage ../development/ocaml-modules/cohttp/lwt-unix.nix { };
 
-    conduit_p4 = callPackage ../development/ocaml-modules/conduit/0.10.0.nix {
-       lwt = lwt2;
-    };
-
-    conduit =
-      if lib.versionOlder "4.03" ocaml.version
-      then callPackage ../development/ocaml-modules/conduit { }
-      else conduit_p4;
+    conduit = callPackage ../development/ocaml-modules/conduit { };
 
     conduit-lwt = callPackage ../development/ocaml-modules/conduit/lwt.nix { };