diff --git a/pkgs/development/ocaml-modules/ocaml-lsp/default.nix b/pkgs/development/ocaml-modules/ocaml-lsp/default.nix
index f5b69a3b1e3..b5cf8d3fe1c 100644
--- a/pkgs/development/ocaml-modules/ocaml-lsp/default.nix
+++ b/pkgs/development/ocaml-modules/ocaml-lsp/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildDunePackage, lsp, xdg, re, fiber, makeWrapper, dot-merlin-reader, spawn }:
+{ lib, buildDunePackage, lsp, xdg, re, fiber, makeWrapper, dot-merlin-reader, spawn, ocamlc-loc }:
 
 buildDunePackage rec {
   pname = "ocaml-lsp-server";
@@ -7,7 +7,8 @@ buildDunePackage rec {
 
   buildInputs = lsp.buildInputs ++ [ lsp re ]
   ++ lib.optional (lib.versionAtLeast version "1.9") spawn
-  ++ lib.optionals (lib.versionAtLeast version "1.10") [ fiber xdg ];
+  ++ lib.optionals (lib.versionAtLeast version "1.10") [ fiber xdg ]
+  ++ lib.optional (lib.versionAtLeast version "1.14.2") ocamlc-loc;
 
   nativeBuildInputs = [ makeWrapper ];
 
diff --git a/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix b/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix
index 41cf9fd3229..b2c43babcf6 100644
--- a/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix
+++ b/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix
@@ -13,8 +13,8 @@ let params =
   if lib.versionAtLeast ocaml.version "4.14"
   then {
     name = "lsp";
-    version = "1.14.1";
-    sha256 = "sha256-5kxMM90Dd5H8yb7f1NYV3abRaePqztFQ82VTnayradk=";
+    version = "1.14.2";
+    sha256 = "sha256-1R+HYaGbPLGDs5DMN3jmnrZFMhMmPUHgF+s+yNzIVJQ=";
   } else if lib.versionAtLeast ocaml.version "4.13"
   then {
     name = "jsonrpc";
diff --git a/pkgs/development/ocaml-modules/ocamlc-loc/default.nix b/pkgs/development/ocaml-modules/ocamlc-loc/default.nix
index 931f40e0d23..3f2d9c013c4 100644
--- a/pkgs/development/ocaml-modules/ocamlc-loc/default.nix
+++ b/pkgs/development/ocaml-modules/ocamlc-loc/default.nix
@@ -12,7 +12,7 @@ buildDunePackage {
     rm -rf vendor/pp
   '';
 
-  minimumOCamlVersion = "4.08";
+  minimalOCamlVersion = "4.08";
 
   propagatedBuildInputs = [ dyn ];