diff --git a/pyproject.toml b/pyproject.toml
index 27368386..f2c5fb6b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = "GPy"
 authors = [{name = "GPy Authors: https://github.com/SheffieldML/GPy/graphs/contributors", email = "gpy.authors@gmail.com"},]
 license = {text = "BSD-3-Clause"}
 description = "The Gaussian Process Toolbox"
-readme = "README.rst"
+readme = "README.md"
 keywords = ["machine-learning", "gaussian-processes", "kernels",]
 classifiers = [
     "License :: OSI Approved :: BSD License",
@@ -15,11 +15,11 @@ classifiers = [
     "Operating System :: MacOS :: MacOS X",
     "Operating System :: Microsoft :: Windows",
     "Operating System :: POSIX :: Linux",
-    "Programming Language :: Python :: 3.5",
-    "Programming Language :: Python :: 3.6",
-    "Programming Language :: Python :: 3.7",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Framework :: IPython",
     "Intended Audience :: Science/Research",
     "Intended Audience :: Developers",
@@ -29,10 +29,9 @@ classifiers = [
 dependencies = [
     "numpy>=1.7",
     "six",
-    "paramz>=0.9.0",
+    "paramz>=0.9.6",
     "cython>=0.29",
-    "scipy>=1.3.0; python_version >= '3.6'",
-    "scipy>=1.3.0,<1.5.0; python_version < '3.6'",
+    "scipy>=1.3.0,<=1.12.0"
 ]
 dynamic = ["version",]
 
@@ -46,8 +45,7 @@ Download = "https://github.com/SheffieldML/GPy/archive/refs/heads/devel.zip"
 docs = ["sphinx"]
 optional = ["mpi4py", "ipython>=4.0.0"]
 plotting = [
-    "matplotlib==3.3.4; python_version >= '3.6'",
-    "matplotlib==3.0.0; python_version < '3.6'",
+    "matplotlib>=3.3.4",
     "plotly >= 1.8.6",
 ]
 notebook = [