diff --git a/.github/workflows/build-and-upload-installers.yml b/.github/workflows/build-and-upload-installers.yml
index eefe510..ea9c49f 100644
--- a/.github/workflows/build-and-upload-installers.yml
+++ b/.github/workflows/build-and-upload-installers.yml
@@ -17,10 +17,9 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.10"
-      - run: python -m pip install briefcase==0.3.14
+          python-version: "3.11"
+      - run: python -m pip install briefcase==0.3.17
       - run: briefcase create
-      - run: python -m pip install tomli
       - run: python pruner.py
       - run: briefcase build
       - run: briefcase package
diff --git a/pruner.py b/pruner.py
index 36580ed..fb2edf5 100644
--- a/pruner.py
+++ b/pruner.py
@@ -1,11 +1,10 @@
 import os
 import shutil
 import sys
+import tomllib
 from glob import glob
 from pathlib import Path
 
-import tomli
-
 
 def prune(base_dir, exclude, include):
     excludes = set()
@@ -34,7 +33,7 @@ def prune(base_dir, exclude, include):
 
 def main():
     with open("pyproject.toml", "rb") as f:
-        config = tomli.load(f)
+        config = tomllib.load(f)
     pruner_config = config["tool"]["pruner"][sys.platform]
     prune(pruner_config["base_dir"], pruner_config["exclude"], pruner_config["include"])
 
diff --git a/pyproject.toml b/pyproject.toml
index c9c7d79..930e6f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,6 @@ test_sources = ["tests"]
 requires = [
     'std-nslog',
     'appdirs>=1.4.4,<2.0.0',
-    'tomli>=2.0.1,<3.0.0',
     'tomli_w>=1.0.0,<2.0.0',
     'numpy>=1.22.1,<2.0.0',
     'pandas>=2.0.0,<3.0.0',
diff --git a/src/tailor/config.py b/src/tailor/config.py
index bffecf4..4520bd1 100644
--- a/src/tailor/config.py
+++ b/src/tailor/config.py
@@ -1,8 +1,8 @@
 import importlib.metadata
 import pathlib
+import tomllib
 
 import appdirs
-import tomli
 import tomli_w
 
 metadata = importlib.metadata.metadata("tailor")
@@ -16,8 +16,8 @@ def read_config():
     if config_path.is_file():
         try:
             with open(config_path, "rb") as f:
-                return tomli.load(f)
-        except (tomli.TOMLDecodeError, UnicodeDecodeError):
+                return tomllib.load(f)
+        except (tomllib.TOMLDecodeError, UnicodeDecodeError):
             # error parsing TOML
             return {}
     else: