diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 0decf3d..ebb3435 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -30,7 +30,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
     - uses: actions/checkout@v4
diff --git a/README.md b/README.md
index d02f5b5..b97cd93 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ The algorithm uses cross-correlation of standardised Mel-Frequency Cepstral Coef
 
 The tool outputs the calculated offset in seconds, and a ["standard score"](https://en.wikipedia.org/wiki/Standard_score) indicating the prominence of the chosen correlation peak.  This can be used as a very rough estimate of the accuracy of the calculated offset - one with a score greater than ten is likely to be correct (at least for audio without similar repeated sections) within the accuracy of the tool; an offset with a score less than five is unlikely to be correct, and a manual check should be carried out.  Note that the value of the score depends on the length of the audio analysed.
 
-The tool uses [FFmpeg](https://ffmpeg.org) for transcoding, so should work on all file formats supported by FFmpeg.  It is tested for compatibility with Python 3.8-3.12 on Linux, Windows and macOS.  Other Python versions and platforms may or may not work.
+The tool uses [FFmpeg](https://ffmpeg.org) for transcoding, so should work on all file formats supported by FFmpeg.  It is tested for compatibility with Python 3.9-3.14 on Linux, Windows and macOS.  Other Python versions and platforms may or may not work.
 
 The aim of this open source project is to provide a simple tool and library that do one job well, and that can be the basis of customisation for more complex use cases.  The [forks of the base respository](https://github.com/bbc/audio-offset-finder/network/members) are worth exploring if you need a feature that is not included here.  The maintainers welcome pull requests with bug fixes, new features and other improvements that fit this philosophy - please see [CONTRIBUTING.md](CONTRIBUTING.md) for details.
 
diff --git a/requirements.txt b/requirements.txt
index e78815c..cdd05f6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,7 @@
-librosa==0.10.2
-matplotlib==3.7.3
-numpy==1.22.3
-pytest==9.0.3
-scipy==1.10.0
+librosa>=0.10.2
+matplotlib>=3.7.3
+numpy>=1.22.3
+pytest>=8.4.2; python_version < "3.10"
+pytest>=9.0.3; python_version >= "3.10"
+scipy>=1.10.0,!=1.15.*; platform_system == "Darwin" and python_version < "3.11"
+scipy>=1.10.0; platform_system != "Darwin" or python_version >= "3.11"
diff --git a/setup.cfg b/setup.cfg
index 4e228a7..fbfec9f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -11,14 +11,26 @@ long_description_content_type = text/markdown
 classifiers =
   License :: OSI Approved :: Apache Software License
   Programming Language :: Python :: 3
+  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
+  Programming Language :: Python :: 3.13
+  Programming Language :: Python :: 3.14
 
 [options]
 packages = find:
+python_requires = >=3.9
+# SciPy 1.15.x macOS wheels fail to load on macOS 27+ (malformed __thread_bss
+# section), and SciPy 1.16+ requires Python 3.11+, so Python 3.10 on macOS
+# must skip 1.15.x
 install_requires =
   librosa >= 0.10.2
   matplotlib >= 3.7.3
-  numpy >= 1.22.3,<2
-  scipy >= 1.10.0
+  numpy >= 1.22.3
+  scipy >= 1.10.0, != 1.15.*; platform_system == "Darwin" and python_version < "3.11"
+  scipy >= 1.10.0; platform_system != "Darwin" or python_version >= "3.11"
 
 [options.extras_require]
 test = pytest >= 6.2.5