diff --git a/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix b/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix
index 2e6802a50426..4e79e0310ac6 100644
--- a/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix
+++ b/pkgs/development/ocaml-modules/ocaml-lsp/jsonrpc.nix
@@ -12,17 +12,21 @@
 let params =
   if lib.versionAtLeast ocaml.version "4.14"
   then {
-    version = "1.11.3";
-    sha256 = "sha256-KlMFh05O04I0Xil2B+nL2hUxZw0jaDMUnI23oUwGyhs=";
+    name = "lsp";
+    version = "1.12.4";
+    sha256 = "sha256-kZuYAny8VjWdq+ipEdPSTRcGzqjNBOgXOi0dOwb52EY=";
   } else if lib.versionAtLeast ocaml.version "4.13"
   then {
+    name = "jsonrpc";
     version = "1.10.5";
     sha256 = "sha256-TeJS6t1ruWhWPvWNatrnSUWI6T17XKiosHLYizBDDcw=";
   } else if lib.versionAtLeast ocaml.version "4.12"
   then {
+    name = "jsonrpc";
     version = "1.9.0";
     sha256 = "sha256:1ac44n6g3rf84gvhcca545avgf9vpkwkkkm0s8ipshfhp4g4jikh";
   } else {
+    name = "jsonrpc";
     version = "1.4.1";
     sha256 = "1ssyazc0yrdng98cypwa9m3nzfisdzpp7hqnx684rqj8f0g3gs6f";
   }
@@ -32,7 +36,7 @@ buildDunePackage rec {
   pname = "jsonrpc";
   inherit (params) version;
   src = fetchurl {
-    url = "https://github.com/ocaml/ocaml-lsp/releases/download/${version}/jsonrpc-${version}.tbz";
+    url = "https://github.com/ocaml/ocaml-lsp/releases/download/${version}/${params.name}-${version}.tbz";
     inherit (params) sha256;
   };
 
diff --git a/pkgs/development/ocaml-modules/ocaml-lsp/lsp.nix b/pkgs/development/ocaml-modules/ocaml-lsp/lsp.nix
index faa149519077..3111d4277c41 100644
--- a/pkgs/development/ocaml-modules/ocaml-lsp/lsp.nix
+++ b/pkgs/development/ocaml-modules/ocaml-lsp/lsp.nix
@@ -13,6 +13,7 @@
 , dyn
 , re
 , stdune
+, chrome-trace
 , dune_3
 , csexp
 , pp
@@ -40,7 +41,22 @@ buildDunePackage rec {
   '';
 
   buildInputs =
-    if lib.versionAtLeast version "1.10.0" then
+    if lib.versionAtLeast version "1.12.0" then
+      [
+        pp
+        re
+        ppx_yojson_conv_lib
+        octavius
+        dune-build-info
+        dune-rpc
+        omd
+        cmdliner
+        ocamlformat-rpc-lib
+        dyn
+        stdune
+        chrome-trace
+      ]
+    else if lib.versionAtLeast version "1.10.0" then
       [
         pp
         re