diff --git a/nixos/doc/manual/release-notes/rl-2405.section.md b/nixos/doc/manual/release-notes/rl-2405.section.md
index 896957ab9e80..cba95335fb66 100644
--- a/nixos/doc/manual/release-notes/rl-2405.section.md
+++ b/nixos/doc/manual/release-notes/rl-2405.section.md
@@ -381,12 +381,14 @@ The pre-existing [services.ankisyncd](#opt-services.ankisyncd.enable) has been m
   This means that configuration now has to be done using [environment variables](https://hexdocs.pm/livebook/readme.html#environment-variables) instead of command line arguments.
   This has the further implication that the `livebook` service configuration has changed:
 
-  - The `erlang_node_short_name`, `erlang_node_name`, `port` and `options` configuration parameters are gone, and have been replaced with an `environment` parameter.
+- The `erlang_node_short_name`, `erlang_node_name`, `port` and `options` configuration parameters are gone, and have been replaced with an `environment` parameter.
     Use the appropriate [environment variables](https://hexdocs.pm/livebook/readme.html#environment-variables) inside `environment` to configure the service instead.
 
 - The `crystal` package has been updated to 1.11.x, which has some breaking changes.
   Refer to crystal's changelog for more information. ([v1.10](https://github.com/crystal-lang/crystal/blob/master/CHANGELOG.md#1100-2023-10-09), [v1.11](https://github.com/crystal-lang/crystal/blob/master/CHANGELOG.md#1110-2024-01-08))
 
+- The `erlang-ls` package no longer ships the `els_dap` binary as of v0.51.0.
+
 ## Other Notable Changes {#sec-release-24.05-notable-changes}
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->
diff --git a/pkgs/development/beam-modules/erlang-ls/default.nix b/pkgs/development/beam-modules/erlang-ls/default.nix
index 04d6fc36176f..1c1d9f933c37 100644
--- a/pkgs/development/beam-modules/erlang-ls/default.nix
+++ b/pkgs/development/beam-modules/erlang-ls/default.nix
@@ -1,7 +1,7 @@
 { fetchFromGitHub, fetchgit, fetchHex, rebar3Relx, buildRebar3, rebar3-proper
 , stdenv, writeScript, lib, erlang }:
 let
-  version = "0.48.0";
+  version = "0.51.0";
   owner = "erlang-ls";
   repo = "erlang_ls";
   deps = import ./rebar-deps.nix {
@@ -24,7 +24,7 @@ rebar3Relx {
   inherit version;
   src = fetchFromGitHub {
     inherit owner repo;
-    sha256 = "sha256-QwsN/P2FBuhIS/vRlrdvokQS6G77kkZ2Rg5rwNc36Jg=";
+    hash = "sha256-2gSDfYGm7XVeEn0xEwuvk8y1z8P2/q86hmNCkK6w2C0=";
     rev = version;
   };
   releaseType = "escript";
@@ -46,11 +46,7 @@ rebar3Relx {
   '';
   # tests seem to be a bit flaky on darwin, skip them for now
   doCheck = !stdenv.isDarwin;
-  installPhase = ''
-    mkdir -p $out/bin
-    cp _build/default/bin/erlang_ls $out/bin/
-    cp _build/dap/bin/els_dap $out/bin/
-  '';
+  installFlags = [ "PREFIX=$(out)" ];
   meta = with lib; {
     homepage = "https://github.com/erlang-ls/erlang_ls";
     description = "The Erlang Language Server";
diff --git a/pkgs/development/beam-modules/erlang-ls/rebar-deps.nix b/pkgs/development/beam-modules/erlang-ls/rebar-deps.nix
index afdf4767843b..2ab6b08338f4 100644
--- a/pkgs/development/beam-modules/erlang-ls/rebar-deps.nix
+++ b/pkgs/development/beam-modules/erlang-ls/rebar-deps.nix
@@ -138,12 +138,12 @@ let
     };
     erlfmt = builder {
       name = "erlfmt";
-      version = "git";
+      version = "1.3.0";
       src = fetchFromGitHub {
-        owner = "gomoripeti";
+        owner = "WhatsApp";
         repo = "erlfmt";
-        rev = "d4422d1fd79a73ef534c2bcbe5b5da4da5338833";
-        sha256 = "07jp4g6a41w7318lh8ndsvgivkj0ahz3spnrsnx4cqkdb97yjaid";
+        sha256 = "sha256-fVjEVmCnoofnfcxwBk0HI4adO0M6QOshP3uZrecZ9vM=";
+        rev = "v1.3.0";
       };
       beamDeps = [ ];
     };