diff --git a/pkgs/development/ocaml-modules/csv/1.5.nix b/pkgs/development/ocaml-modules/csv/1.5.nix
deleted file mode 100644
index ef4ae4484d833..0000000000000
--- a/pkgs/development/ocaml-modules/csv/1.5.nix
+++ /dev/null
@@ -1,38 +0,0 @@
-{ lib, stdenv, fetchzip, ocaml, findlib, ocamlbuild }:
-
-stdenv.mkDerivation rec {
-  pname = "ocaml${ocaml.version}-csv";
-  version = "1.5";
-
-  src = fetchzip {
-    url = "https://github.com/Chris00/ocaml-csv/releases/download/${version}/csv-${version}.tar.gz";
-    sha256 = "1ca7jgg58j24pccs5fshis726s06fdcjshnwza5kwxpjgdbvc63g";
-  };
-
-  nativeBuildInputs = [ ocaml findlib ocamlbuild ];
-
-  strictDeps = true;
-
-  createFindlibDestdir = true;
-
-  configurePhase = "ocaml setup.ml -configure --prefix $out --enable-tests";
-
-  buildPhase = "ocaml setup.ml -build";
-
-  doCheck = true;
-  checkPhase = "ocaml setup.ml -test";
-
-  installPhase = ''
-    runHook preInstall
-    ocaml setup.ml -install
-    runHook postInstall
-  '';
-
-  meta = with lib; {
-    description = "A pure OCaml library to read and write CSV files";
-    homepage = "https://github.com/Chris00/ocaml-csv";
-    license = licenses.lgpl21;
-    maintainers = [ maintainers.vbgl ];
-    inherit (ocaml.meta) platforms;
-  };
-}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 28e3db6d64c99..32b96e2dbcc32 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -265,10 +265,7 @@ let
 
     cstruct-unix = callPackage ../development/ocaml-modules/cstruct/unix.nix {};
 
-    csv =
-      if lib.versionAtLeast ocaml.version "4.2"
-      then callPackage ../development/ocaml-modules/csv { }
-      else callPackage ../development/ocaml-modules/csv/1.5.nix { };
+    csv = callPackage ../development/ocaml-modules/csv { };
 
     csv-lwt = callPackage ../development/ocaml-modules/csv/lwt.nix { };