diff --git a/pyproject.toml b/pyproject.toml
index ae2196e..d9a0433 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,9 +1,5 @@
 [build-system]
-requires = [
-  "setuptools_scm[toml] >= 6.2",
-  "setuptools-generate >= 0.0.6",
-  "platformdirs",
-]
+requires = ["setuptools_scm[toml] >= 6.2", "setuptools-generate >= 0.0.6"]
 build-backend = "setuptools.build_meta"
 
 # https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html
diff --git a/requirements.txt b/requirements.txt
index eac00db..ef17299 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
 #!/usr/bin/env -S pip install -r
 
-platformdirs
-pygls
-# UNI.get_uri()
-tree-sitter-lsp >= 0.0.11
+# ErrorFinder
+tree-sitter-lsp >= 0.0.13
 tree-sitter-zathurarc >= 0.0.3
+# https://python-jsonschema.readthedocs.io/en/stable/validate/#validating-formats
+# validate color
 webcolors