diff --git a/pyproject.toml b/pyproject.toml
index 39c9a76..53e3498 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,8 @@
 [build-system]
-requires = ["poetry-core>=1.0.0"]
+requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
 
+
 [tool.poetry]
 name = "intro-to-data-science"
 version = "0.3.0.dev0"
@@ -25,6 +26,9 @@ readme = "README.md"
 homepage = "https://github.com/webartifex/intro-to-data-science"
 repository = "https://github.com/webartifex/intro-to-data-science"
 
+package-mode = false
+
+
 [tool.poetry.dependencies]
 python = "^3.8"
 
@@ -34,4 +38,4 @@ numpy = "^1.21"
 pandas = "^1.3"
 scikit-learn = "^1.0"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]