diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ed7c0e0..01ee066 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-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/pdm.lock b/pdm.lock
index 2f4541d..aecc7d7 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -5,7 +5,7 @@
 groups = ["default", "dev", "pex"]
 strategy = ["cross_platform"]
 lock_version = "4.4.1"
-content_hash = "sha256:d70f4bd036f0caf5fb1bc2ba661c1852595c01cd42291e6c405e319bb11fe63a"
+content_hash = "sha256:0b7e89aa5c59668d49f39c2a7b5b37bf4193268453312c7fa501dd438ee817d6"
 
 [[package]]
 name = "absl-py"
@@ -650,19 +650,6 @@ files = [
     {file = "immutabledict-4.2.0.tar.gz", hash = "sha256:e003fd81aad2377a5a758bf7e1086cf3b70b63e9a5cc2f46bce8d0a2b4727c5f"},
 ]
 
-[[package]]
-name = "importlib-metadata"
-version = "7.1.0"
-requires_python = ">=3.8"
-summary = "Read metadata from Python packages"
-dependencies = [
-    "zipp>=0.5",
-]
-files = [
-    {file = "importlib_metadata-7.1.0-py3-none-any.whl", hash = "sha256:30962b96c0c223483ed6cc7280e7f0199feb01a0e40cfae4d4450fc6fab1f570"},
-    {file = "importlib_metadata-7.1.0.tar.gz", hash = "sha256:b78938b926ee8d5f020fc4772d487045805a55ddbad2ecf21c6d60938dc7fcd2"},
-]
-
 [[package]]
 name = "iniconfig"
 version = "2.0.0"
@@ -1249,7 +1236,6 @@ dependencies = [
     "colorama>=0.4.5; sys_platform == \"win32\"",
     "docutils<0.22,>=0.18.1",
     "imagesize>=1.3",
-    "importlib-metadata>=4.8; python_version < \"3.10\"",
     "packaging>=21.0",
     "requests>=2.25.0",
     "snowballstemmer>=2.0",
@@ -1463,13 +1449,3 @@ files = [
     {file = "wrapt-1.16.0-py3-none-any.whl", hash = "sha256:6906c4100a8fcbf2fa735f6059214bb13b97f75b1a61777fcf6432121ef12ef1"},
     {file = "wrapt-1.16.0.tar.gz", hash = "sha256:5f370f952971e7d17c7d1ead40e49f32345a7f7a5373571ef44d800d06b1899d"},
 ]
-
-[[package]]
-name = "zipp"
-version = "3.18.1"
-requires_python = ">=3.8"
-summary = "Backport of pathlib-compatible object wrapper for zip files"
-files = [
-    {file = "zipp-3.18.1-py3-none-any.whl", hash = "sha256:206f5a15f2af3dbaee80769fb7dc6f249695e940acca08dfb2a4769fe61e538b"},
-    {file = "zipp-3.18.1.tar.gz", hash = "sha256:2884ed22e7d8961de1c9a05142eb69a247f120291bc0206a00a7642f09b5b715"},
-]
diff --git a/pyproject.toml b/pyproject.toml
index 6590d0b..765c66c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "pdm.backend"
 name = "lxm3"
 description = 'LXM3: XManager launch backend for HPC clusters'
 readme = "README.md"
-requires-python = ">=3.9,<3.13"
+requires-python = ">=3.10,<3.13"
 license = {text = "MIT"}
 keywords = ["machine-learning", "hpc", "packaging", "singularity"]
 authors = [{ name = "Yicheng Luo", email = "ethanluoyc@gmail.com" }]
@@ -14,9 +14,9 @@ classifiers = [
   "Development Status :: 4 - Beta",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: Implementation :: CPython",
 ]
 dynamic = ["version"]
@@ -143,7 +143,7 @@ ignore = [
 reportMissingImports = true
 reportMissingTypeStubs = false
 
-pythonVersion = "3.9"
+pythonVersion = "3.10"
 pythonPlatform = "Linux"
 
 [tool.pytest.ini_options]