diff --git a/.github/workflows/ci_cd.yml b/.github/workflows/ci_cd.yml
index 40d3f4e9e..e40f5916e 100644
--- a/.github/workflows/ci_cd.yml
+++ b/.github/workflows/ci_cd.yml
@@ -126,7 +126,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [windows-latest, ubuntu-latest]
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.10', '3.11', '3.12']
     steps:
       - uses: ansys/actions/build-wheelhouse@v8
         with:
diff --git a/pyproject.toml b/pyproject.toml
index 9483622b2..c4ed3afc8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = "ansys-dyna-core"
 version = "0.4.dev0"
 description = "Python interface to LS-DYNA Service"
 readme = "README.rst"
-requires-python = ">=3.9,<4"
+requires-python = ">=3.10,<4"
 license = { file = "LICENSE" }
 authors = [{ name = "ANSYS, Inc.", email = "pyansys.core@ansys.com" }]
 maintainers = [{ name = "ANSYS, Inc.", email = "pyansys.core@ansys.com" }]
diff --git a/tox.ini b/tox.ini
index 9a92146f1..49fa9b95a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,6 @@ isolated_build_env = build
 [testenv]
 description = Checks for project testing with desired extras
 basepython =
-    tests39: python3.9
     test310: python3.10
     test311: python3.11
     test312: python3.12