diff --git a/pyproject.toml b/pyproject.toml
index 64152fe4..8dc990ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -85,10 +85,11 @@ sphinx-rtd-theme = {version = "^1.0.0", optional = true}
 myst-parser = {version= "^0.16.1", optional = true}
 waitress ="~2.0.0"
 flask-limiter ="<=2.0.0"
+pyld =""
 
 [tool.poetry.extras]
 report = ["bokeh", "jupyter"]
-testing = ["yapf", "pytest", "pre-commit", "pytest-cov", "pylint"] 
+testing = ["yapf", "pytest", "pre-commit", "pytest-cov", "pylint"]
 docs = ["sphinx-rtd-theme", "sphinx", "docutils", "myst-parser"]
 dev = ["yapf", "pytest", "pre-commit", "pytest-cov", "pylint", "sphinx-rtd-theme", "sphinx", "docutils"]
 
@@ -96,4 +97,3 @@ dev = ["yapf", "pytest", "pre-commit", "pytest-cov", "pylint", "sphinx-rtd-theme
 [build-system]
 requires = ["poetry>=1.2.0a2"]
 build-backend = "poetry.masonry.api"
-