diff --git a/pkgs/development/python-modules/lsprotocol/default.nix b/pkgs/development/python-modules/lsprotocol/default.nix
index ce6e4eea44a3..c8c058f47c68 100644
--- a/pkgs/development/python-modules/lsprotocol/default.nix
+++ b/pkgs/development/python-modules/lsprotocol/default.nix
@@ -15,13 +15,13 @@
 buildPythonPackage rec {
   pname = "lsprotocol";
   version = "2023.0.1";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "microsoft";
-    repo = pname;
+    repo = "lsprotocol";
     rev = "refs/tags/${version}";
     hash = "sha256-PHjLKazMaT6W4Lve1xNxm6hEwqE3Lr2m5L7Q03fqb68=";
   };
@@ -70,6 +70,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Python implementation of the Language Server Protocol";
     homepage = "https://github.com/microsoft/lsprotocol";
+    changelog = "https://github.com/microsoft/lsprotocol/releases/tag/${version}";
     license = licenses.mit;
     maintainers = with maintainers; [ doronbehar fab ];
   };
diff --git a/pkgs/development/python-modules/pygls/default.nix b/pkgs/development/python-modules/pygls/default.nix
index 74e5b243e60b..9903e104034c 100644
--- a/pkgs/development/python-modules/pygls/default.nix
+++ b/pkgs/development/python-modules/pygls/default.nix
@@ -1,19 +1,21 @@
 { lib
 , stdenv
 , buildPythonPackage
-, pythonOlder
 , fetchFromGitHub
-, poetry-core
 , lsprotocol
-, typeguard
+, poetry-core
 , pytest-asyncio
 , pytestCheckHook
+, pythonOlder
+, pythonRelaxDepsHook
+, typeguard
+, websockets
 }:
 
 buildPythonPackage rec {
   pname = "pygls";
   version = "1.2.1";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
@@ -24,8 +26,14 @@ buildPythonPackage rec {
     hash = "sha256-ARez9fs50kScfMp/W/aFIOcJonpFrcfyrzJuVwou7fk=";
   };
 
+  pythonRelaxDeps = [
+    # https://github.com/openlawlibrary/pygls/pull/432
+    "lsprotocol"
+  ];
+
   nativeBuildInputs = [
     poetry-core
+    pythonRelaxDepsHook
   ];
 
   propagatedBuildInputs = [
@@ -33,6 +41,12 @@ buildPythonPackage rec {
     typeguard
   ];
 
+  passthru.optional-dependencies = {
+    ws = [
+      websockets
+    ];
+  };
+
   nativeCheckInputs = [
     pytest-asyncio
     pytestCheckHook
@@ -46,12 +60,14 @@ buildPythonPackage rec {
     ulimit -n 1024
   '';
 
-  pythonImportsCheck = [ "pygls" ];
+  pythonImportsCheck = [
+    "pygls"
+  ];
 
   meta = with lib; {
     description = "Pythonic generic implementation of the Language Server Protocol";
     homepage = "https://github.com/openlawlibrary/pygls";
-    changelog = "https://github.com/openlawlibrary/pygls/blob/${src.rev}/CHANGELOG.md";
+    changelog = "https://github.com/openlawlibrary/pygls/blob/${version}/CHANGELOG.md";
     license = licenses.asl20;
     maintainers = with maintainers; [ kira-bruneau ];
   };