diff --git a/ieegprep/__init__.py b/ieegprep/__init__.py
index 36626d7..0489457 100644
--- a/ieegprep/__init__.py
+++ b/ieegprep/__init__.py
@@ -5,8 +5,8 @@
 # ensure minimum version of python
 #
 import sys
-if sys.version_info < (3, 8, 0):
-    sys.exit("Python 3.8 or later is required.")
+if sys.version_info < (3, 9, 0):
+    sys.exit("Python 3.9 or later is required.")
 
 
 #
diff --git a/pyproject.toml b/pyproject.toml
index 9794f75..d1a8a0e 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,12 +10,12 @@ name = "ieegprep"
 description = "A package to read and pre-process Intracranial Electroencephalography (iEEG) data that is structured according to the Brain Imaging Data Structure (BIDS)"
 readme = "README.md"
 license = { text="GPLv3" }
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 dependencies = [
-    "numpy >= 1.22.3",
-    "scipy >= 1.8.0",
-    "pymef >= 1.4.2",
-    "psutil >= 5.9.4",
+    "numpy >= 2.2.1",
+    "scipy >= 1.15.0",
+    "pymef >= 1.4.5",
+    "psutil >= 6.1.1",
 ]
 keywords = ["intracranial", "electroencephalography", "ieeg", "BIDS"]
 authors = [{ name="Max van den Boom", email="m.a.vandenboom84@gmail.com" }]
@@ -25,10 +25,11 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.9",
-    "Programming Language :: Python :: 3.8",
     "Topic :: Scientific/Engineering",
 ]
 dynamic = ["version"]
diff --git a/setup.cfg b/setup.cfg
index 89e395d..09753e7 100755
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,7 @@
 [options]
-python_requires = >= 3.8
+python_requires = >= 3.9
 install_requires =
-    numpy >= 1.22.3
-    scipy >= 1.8.0
-    pymef >= 1.4.2
-    psutil >= 5.9.4
+    numpy >= 1.22.1
+    scipy >= 1.15.0
+    pymef >= 1.4.5
+    psutil >= 6.1.1