diff --git a/README.rst b/README.rst
index 2e7674a..c22c18d 100644
--- a/README.rst
+++ b/README.rst
@@ -59,7 +59,7 @@ Development
 
 For development, you can install the required dependencies using the following command:
 
-    pip install -e .[testing,development]
+    pip install -e .[testing,development,ws]
 
 
 The tests can be run using tox:
diff --git a/ci/update_dependencies.sh b/ci/update_dependencies.sh
index ca11b03..24ac2a8 100755
--- a/ci/update_dependencies.sh
+++ b/ci/update_dependencies.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/env sh
 
 . .venv/bin/activate
-pip-compile -U --extra=testing --extra=development --extra=docs -o ./dev-requirements.txt  setup.cfg
+pip-compile --extra=ws --extra=development --extra=docs --extra=testing --output-file=./dev-requirements.txt pyproject.toml
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 5b3daa2..5c413dd 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,7 +2,7 @@
 # This file is autogenerated by pip-compile with Python 3.8
 # by the following command:
 #
-#    pip-compile --extra=development --extra=docs --extra=testing --output-file=./dev-requirements.txt setup.cfg
+#    pip-compile --extra=development --extra=docs --extra=testing --extra=ws --output-file=./dev-requirements.txt pyproject.toml
 #
 alabaster==0.7.13
     # via sphinx
@@ -32,13 +32,13 @@ click==8.1.8
     # via
     #   black
     #   pip-tools
-    #   s2-python (setup.cfg)
+    #   s2-python (pyproject.toml)
 colorama==0.4.6
     # via tox
 coverage[toml]==7.6.1
     # via pytest-cov
 datamodel-code-generator==0.27.3
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 dill==0.3.9
     # via pylint
 distlib==0.3.9
@@ -83,7 +83,7 @@ markupsafe==2.1.5
 mccabe==0.7.0
     # via pylint
 mypy==1.14.1
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 mypy-extensions==1.0.0
     # via
     #   black
@@ -104,7 +104,7 @@ packaging==24.2
 pathspec==0.12.1
     # via black
 pip-tools==7.4.1
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 platformdirs==4.3.6
     # via
     #   black
@@ -116,11 +116,11 @@ pluggy==1.5.0
     #   pytest
     #   tox
 pre-commit==3.5.0
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 pydantic==2.10.6
     # via
     #   datamodel-code-generator
-    #   s2-python (setup.cfg)
+    #   s2-python (pyproject.toml)
 pydantic-core==2.27.2
     # via pydantic
 pygments==2.19.1
@@ -128,7 +128,7 @@ pygments==2.19.1
     #   sphinx
     #   sphinx-tabs
 pylint==3.2.7
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 pyproject-api==1.8.0
     # via tox
 pyproject-hooks==1.2.0
@@ -136,24 +136,24 @@ pyproject-hooks==1.2.0
     #   build
     #   pip-tools
 pyright==1.1.396
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 pytest==8.3.5
     # via
     #   pytest-cov
     #   pytest-timer
-    #   s2-python (setup.cfg)
+    #   s2-python (pyproject.toml)
 pytest-cov==5.0.0
     # via pytest-cover
 pytest-cover==3.0.0
     # via pytest-coverage
 pytest-coverage==0.0
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 pytest-timer==1.0.0
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 pytz==2025.1
     # via
     #   babel
-    #   s2-python (setup.cfg)
+    #   s2-python (pyproject.toml)
 pyyaml==6.0.2
     # via
     #   datamodel-code-generator
@@ -166,7 +166,7 @@ snowballstemmer==2.2.0
     # via sphinx
 sphinx==7.1.2
     # via
-    #   s2-python (setup.cfg)
+    #   s2-python (pyproject.toml)
     #   sphinx-copybutton
     #   sphinx-fontawesome
     #   sphinx-rtd-theme
@@ -174,13 +174,13 @@ sphinx==7.1.2
     #   sphinxcontrib-httpdomain
     #   sphinxcontrib-jquery
 sphinx-copybutton==0.5.2
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 sphinx-fontawesome==0.0.6
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 sphinx-rtd-theme==3.0.2
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 sphinx-tabs==3.4.7
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 sphinxcontrib-applehelp==1.0.4
     # via sphinx
 sphinxcontrib-devhelp==1.0.2
@@ -188,7 +188,7 @@ sphinxcontrib-devhelp==1.0.2
 sphinxcontrib-htmlhelp==2.0.1
     # via sphinx
 sphinxcontrib-httpdomain==1.8.1
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 sphinxcontrib-jquery==4.1
     # via sphinx-rtd-theme
 sphinxcontrib-jsmath==1.0.1
@@ -212,9 +212,9 @@ tomli==2.2.1
 tomlkit==0.13.2
     # via pylint
 tox==4.24.1
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 types-pytz==2024.2.0.20241221
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 typing-extensions==4.12.2
     # via
     #   annotated-types
@@ -233,7 +233,7 @@ virtualenv==20.29.2
     #   pre-commit
     #   tox
 websockets==13.1
-    # via s2-python (setup.cfg)
+    # via s2-python (pyproject.toml)
 wheel==0.45.1
     # via pip-tools
 zipp==3.20.2