diff --git a/pdm.lock b/pdm.lock
index ce36d99..57087bb 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -5,7 +5,7 @@
 groups = ["default", "dev"]
 strategy = ["cross_platform", "inherit_metadata"]
 lock_version = "4.4.1"
-content_hash = "sha256:eab6fe257f165f4f9c90e0ec888b53674d11554829680d449651cc50227333d0"
+content_hash = "sha256:cbd94bc2e3d8cb0cd63a1c3430ea4425fea61c6dbe6f53a76b68b0eb9fd4565f"
 
 [[package]]
 name = "certifi"
@@ -130,13 +130,13 @@ files = [
 
 [[package]]
 name = "idna"
-version = "3.6"
+version = "3.7"
 requires_python = ">=3.5"
 summary = "Internationalized Domain Names in Applications (IDNA)"
 groups = ["dev"]
 files = [
-    {file = "idna-3.6-py3-none-any.whl", hash = "sha256:c05567e9c24a6b9faaa835c4821bad0590fbb9d5779e7caa6e1cc4978e7eb24f"},
-    {file = "idna-3.6.tar.gz", hash = "sha256:9ecdbbd083b06798ae1e86adcbfe8ab1479cf864e4ee30fe4e46a003d12491ca"},
+    {file = "idna-3.7-py3-none-any.whl", hash = "sha256:82fee1fc78add43492d3a1898bfa6d8a904cc97d8427f683ed8e798d07761aa0"},
+    {file = "idna-3.7.tar.gz", hash = "sha256:028ff3aadf0609c1fd278d8ea3089299412a7a8b9bd005dd08b9f8285bcb5cfc"},
 ]
 
 [[package]]
@@ -152,13 +152,13 @@ files = [
 
 [[package]]
 name = "packaging"
-version = "23.2"
+version = "24.0"
 requires_python = ">=3.7"
 summary = "Core utilities for Python packages"
 groups = ["dev"]
 files = [
-    {file = "packaging-23.2-py3-none-any.whl", hash = "sha256:8c491190033a9af7e1d931d0b5dacc2ef47509b34dd0de67ed209b5203fc88c7"},
-    {file = "packaging-23.2.tar.gz", hash = "sha256:048fb0e9405036518eaaf48a55953c750c11e1a1b68e0dd1a9d62ed0c092cfc5"},
+    {file = "packaging-24.0-py3-none-any.whl", hash = "sha256:2ddfb553fdf02fb784c234c7ba6ccc288296ceabec964ad2eae3777778130bc5"},
+    {file = "packaging-24.0.tar.gz", hash = "sha256:eb82c5e3e56209074766e6885bb04b8c38a0c015d0a30036ebe7ece34c9989e9"},
 ]
 
 [[package]]
@@ -220,34 +220,6 @@ files = [
     {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
 ]
 
-[[package]]
-name = "tomlkit"
-version = "0.12.3"
-requires_python = ">=3.7"
-summary = "Style preserving TOML library"
-groups = ["dev"]
-marker = "python_version >= \"3.11\""
-files = [
-    {file = "tomlkit-0.12.3-py3-none-any.whl", hash = "sha256:b0a645a9156dc7cb5d3a1f0d4bab66db287fcb8e0430bdd4664a095ea16414ba"},
-    {file = "tomlkit-0.12.3.tar.gz", hash = "sha256:75baf5012d06501f07bee5bf8e801b9f343e7aac5a92581f20f80ce632e6b5a4"},
-]
-
-[[package]]
-name = "ubump"
-version = "0.1.10"
-requires_python = "<3.13,>=3.11"
-summary = "Yet another bump tool"
-groups = ["dev"]
-marker = "python_version >= \"3.11\""
-dependencies = [
-    "packaging~=23.2",
-    "tomlkit~=0.12.3",
-]
-files = [
-    {file = "ubump-0.1.10-py3-none-any.whl", hash = "sha256:85ec27308786e672bb3b6fd26f585a59e3ae6001c57546196c57ffda206bfbc9"},
-    {file = "ubump-0.1.10.tar.gz", hash = "sha256:51b4f6f36fd1bdffbe9067f5e86ae223f16c350c88465db858dfd9308c23d7df"},
-]
-
 [[package]]
 name = "urllib3"
 version = "2.2.1"
diff --git a/pyproject.toml b/pyproject.toml
index b898611..4a34aa1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ authors = [
     {name = "vd", email = "snowflake@vd2.org"},
 ]
 dependencies = []
-requires-python = ">=3.8,<3.13"
+requires-python = ">=3.8,<4.0"
 readme = "README.md"
 license = { file = "LICENSE" }
 
@@ -45,7 +45,7 @@ distribution = true
 [tool.pdm.dev-dependencies]
 dev = [
     "pytest~=8.0.2",
-    "ubump~=0.1.10; python_version >= '3.11'",
+    #"ubump~=0.1.10; python_version >= '3.11'",
     "requests>=2.31.0",
 ]