diff --git a/pkgs/development/ocaml-modules/sexplib/108.08.00.nix b/pkgs/development/ocaml-modules/sexplib/108.08.00.nix
deleted file mode 100644
index 349dffcf47b..00000000000
--- a/pkgs/development/ocaml-modules/sexplib/108.08.00.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{stdenv, fetchurl, ocaml, findlib, type_conv, camlp4}:
-
-if !stdenv.lib.versionAtLeast ocaml.version "3.12"
-|| stdenv.lib.versionAtLeast ocaml.version "4.03"
-then throw "sexlib-108.08.00 is not available for OCaml ${ocaml.version}" else
-
-stdenv.mkDerivation {
-  name = "ocaml-sexplib-108.08.00";
-
-  src = fetchurl {
-    url = "https://ocaml.janestreet.com/ocaml-core/108.08.00/individual/sexplib-108.08.00.tar.gz";
-    sha256 = "11z1k1d7dbb5m957klgalimpr0r602xp5zkkbgbffib1bphasarg";
-  };
-
-  buildInputs = [ocaml findlib];
-  propagatedBuildInputs = [type_conv camlp4];
-
-  createFindlibDestdir = true;
-
-  meta = with stdenv.lib; {
-    branch = "108";
-    homepage = "https://ocaml.janestreet.com/";
-    description = "Library for serializing OCaml values to and from S-expressions";
-    license = licenses.asl20;
-    maintainers = [ maintainers.vbgl ];
-    platforms = ocaml.meta.platforms or [];
-  };
-}
diff --git a/pkgs/development/ocaml-modules/sexplib/111.25.00.nix b/pkgs/development/ocaml-modules/sexplib/111.25.00.nix
deleted file mode 100644
index adf878bca03..00000000000
--- a/pkgs/development/ocaml-modules/sexplib/111.25.00.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{stdenv, fetchurl, ocaml, findlib, type_conv, camlp4}:
-
-if !stdenv.lib.versionAtLeast ocaml.version "4.00"
-|| stdenv.lib.versionAtLeast ocaml.version "4.03"
-then throw "sexlib-111.25.00 is not available for OCaml ${ocaml.version}" else
-
-
-stdenv.mkDerivation {
-  name = "ocaml-sexplib-111.25.00";
-
-  src = fetchurl {
-    url = "https://ocaml.janestreet.com/ocaml-core/111.25.00/individual/sexplib-111.25.00.tar.gz";
-    sha256 = "0qh0zqp5nakqpmmhh4x7cg03vqj3j2bj4zj0nqdlksai188p9ila";
-  };
-
-  buildInputs = [ocaml findlib];
-  propagatedBuildInputs = [type_conv camlp4];
-
-  createFindlibDestdir = true;
-
-  meta = with stdenv.lib; {
-    homepage = "https://ocaml.janestreet.com/";
-    description = "Library for serializing OCaml values to and from S-expressions";
-    license = licenses.asl20;
-    maintainers = [ maintainers.vbgl maintainers.ericbmerritt ];
-    platforms = ocaml.meta.platforms or [];
-  };
-}
diff --git a/pkgs/development/ocaml-modules/sexplib/112.24.01.nix b/pkgs/development/ocaml-modules/sexplib/112.24.01.nix
deleted file mode 100644
index fe7b9020dae..00000000000
--- a/pkgs/development/ocaml-modules/sexplib/112.24.01.nix
+++ /dev/null
@@ -1,25 +0,0 @@
-{ stdenv, buildOcaml, fetchurl, ocaml, type_conv, camlp4 }:
-
-if !stdenv.lib.versionAtLeast ocaml.version "4.02"
-|| stdenv.lib.versionAtLeast ocaml.version "4.03"
-then throw "sexlib-112.24.01 is not available for OCaml ${ocaml.version}" else
-
-buildOcaml rec {
-  minimumSupportedOcamlVersion = "4.02";
-  name = "sexplib";
-  version = "112.24.01";
-
-  src = fetchurl {
-    url = "https://github.com/janestreet/sexplib/archive/${version}.tar.gz";
-    sha256 = "5f776aee295cc51c952aecd4b74b52dd2b850c665cc25b3d69bc42014d3ba073";
-  };
-
-  propagatedBuildInputs = [ type_conv camlp4 ];
-
-  meta = with stdenv.lib; {
-    homepage = "https://ocaml.janestreet.com/";
-    description = "Library for serializing OCaml values to and from S-expressions";
-    license = licenses.asl20;
-    maintainers = [ maintainers.ericbmerritt ];
-  };
-}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index e0ac6f08b9d..87d67e5e8e6 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -770,19 +770,6 @@ let
       then type_conv_108_08_00
       else null;
 
-    sexplib_108_08_00 = callPackage ../development/ocaml-modules/sexplib/108.08.00.nix { };
-    sexplib_111_25_00 = callPackage ../development/ocaml-modules/sexplib/111.25.00.nix { };
-    sexplib_112_24_01 = callPackage ../development/ocaml-modules/sexplib/112.24.01.nix { };
-
-    sexplib_p4 =
-      if lib.versionOlder "4.02" ocaml.version
-      then sexplib_112_24_01
-      else if lib.versionOlder "4.00" ocaml.version
-      then sexplib_111_25_00
-      else if lib.versionOlder "3.12" ocaml.version
-      then sexplib_108_08_00
-      else null;
-
     ocaml-protoc = callPackage ../development/ocaml-modules/ocaml-protoc { };
 
     ocaml_extlib = callPackage ../development/ocaml-modules/extlib { };
@@ -1133,7 +1120,7 @@ let
       then janeStreet.sexplib
       else if lib.versionOlder "4.02" ocaml.version
       then callPackage ../development/ocaml-modules/janestreet/sexplib.nix {}
-      else sexplib_p4;
+      else null;
 
     variantslib =
       if lib.versionOlder "4.03" ocaml.version