diff --git a/.github/workflows/test_and_deploy.yml b/.github/workflows/test_and_deploy.yml
index 9072e53..2175cc5 100644
--- a/.github/workflows/test_and_deploy.yml
+++ b/.github/workflows/test_and_deploy.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11', '3.12']
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index d2d9df2..2998c44 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -9,7 +9,7 @@ version: 2
 build:
   os: ubuntu-20.04
   tools:
-    python: "3.8"
+    python: "3.10"
     # You can also specify other tool versions:
     # nodejs: "16"
     # rust: "1.55"
diff --git a/pyproject.toml b/pyproject.toml
index b8416b2..f82e69c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 88
-target-version = ['py39']
+target-version = ['py310']
 
 [tool.isort]
 profile = "black"
diff --git a/setup.cfg b/setup.cfg
index 7c16e20..aabddea 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -39,7 +39,7 @@ install_requires =
     qtpy
     unyt
     yt>=4.0.1
-python_requires = >=3.9
+python_requires = >=3.10
 package_dir =
     =src
 setup_requires =
diff --git a/tox.ini b/tox.ini
index 00271d8..4e0fdc8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,12 +1,12 @@
 # For more information about tox, see https://tox.readthedocs.io/en/latest/
 [tox]
-envlist = py{39,310,311}-{linux,macos,windows}
+envlist = py{310,311,312}-{linux,macos,windows}
 
 [gh-actions]
 python =
-    3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 [gh-actions:env]
 PLATFORM =