diff --git a/.github/workflows/build-test-publish.yml b/.github/workflows/build-test-publish.yml
index 85e53e4e..a07ea56b 100644
--- a/.github/workflows/build-test-publish.yml
+++ b/.github/workflows/build-test-publish.yml
@@ -20,9 +20,10 @@ jobs:
         python_version:
           - "3.10"
           - "3.11"
+          - "3.12"
         include:
           - os: windows-latest
-            python_version: "3.11"
+            python_version: "3.12"
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{matrix.python_version}}
diff --git a/pyproject.toml b/pyproject.toml
index a8aac548..f4178aaf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ dynamic = ["version"]
 name = "capella2polarion"
 description = "Synchronise Capella models with Polarion projects"
 readme = "README.md"
-requires-python = ">=3.9, <3.12"
+requires-python = ">=3.10, <3.13"
 license = { text = "Apache-2.0" }
 authors = [
   { name = "DB Netz AG" },
@@ -23,9 +23,9 @@ classifiers = [
   "Natural Language :: English",
   "Operating System :: OS Independent",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
   "capellambse",