diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 6deb3e0..d8f58df 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -30,41 +30,41 @@ jobs:
       with:
         fetch-depth: '0'
     - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/* +refs/heads/*:refs/remotes/origin/*
-    - name: Pull docker images
-      if: ${{ matrix.os == 'ubuntu-22.04' }}
-      run: |
-        docker pull rigetti/quilc
-        docker pull rigetti/qvm    
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       if: github.event_name == 'push' || github.event_name == 'schedule'
       uses: actions/setup-python@v5
       with:
-        python-version: '3.9'
-    - name: Build and test (3.9)
+        python-version: '3.10'
+    - name: Build and test (3.10)
       if: github.event_name == 'push' || github.event_name == 'schedule'
       shell: bash
       run: |
         ./.github/workflows/build-test nomypy
-    - name: Set up Python 3.10
+    - name: Pull docker images
+      if: ${{ matrix.os == 'ubuntu-22.04' }}
+      run: |
+        docker pull rigetti/quilc
+        docker pull rigetti/qvm    
+    - name: Set up Python 3.11
       uses: actions/setup-python@v5
       with:
-        python-version: '3.10'
-    - name: Build and test including remote checks (3.10) mypy
+        python-version: '3.11'
+    - name: Build and test including remote checks (3.11) mypy
       if:  (matrix.os == 'macos-12') && (github.event_name == 'push' || (github.event_name == 'pull_request' &&  github.event.pull_request.head.repo.full_name == github.repository) || github.event_name == 'release' || github.event_name == 'schedule' )
       shell: bash
       run: |
         ./.github/workflows/build-test mypy
-    - name: Build and test including remote checks (3.10) nomypy
+    - name: Build and test including remote checks (3.11) nomypy
       if:  (matrix.os != 'macos-12') && (github.event_name == 'push' || (github.event_name == 'pull_request' &&  github.event.pull_request.head.repo.full_name == github.repository) || github.event_name == 'release' || github.event_name == 'schedule')
       shell: bash
       run: |
         ./.github/workflows/build-test nomypy
-    - name: Set up Python 3.11
+    - name: Set up Python 3.12
       if: github.event_name == 'push' || github.event_name == 'pull_request' || github.event_name == 'schedule'
       uses: actions/setup-python@v5
       with:
-        python-version: '3.11'
-    - name: Build and test (3.11)
+        python-version: '3.12'
+    - name: Build and test (3.12)
       if: github.event_name == 'push' || github.event_name == 'pull_request' || github.event_name == 'schedule'
       shell: bash
       run: |
@@ -119,10 +119,10 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: '0'
-    - name: Set up Python 3.10
+    - name: Set up Python 3.11
       uses: actions/setup-python@v5
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Download all wheels
       uses: actions/download-artifact@v4
       with:
@@ -159,4 +159,4 @@ jobs:
     steps:
     - name: Deploy to GitHub Pages
       id: deployment
-      uses: actions/deploy-pages@v4.0.1
+      uses: actions/deploy-pages@v4.0.3
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e10ca09..eaa8047 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -13,10 +13,10 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v5
       with:
-        python-version: '3.9'
+        python-version: '3.10'
     - name: Upgrade pip and install wheel
       run: pip install --upgrade pip wheel
     - name: Install pytket pyquil
diff --git a/.github/workflows/docs/requirements.txt b/.github/workflows/docs/requirements.txt
index 3268b4f..e893f3c 100644
--- a/.github/workflows/docs/requirements.txt
+++ b/.github/workflows/docs/requirements.txt
@@ -1,3 +1,3 @@
-sphinx ~= 4.3.2
+sphinx ~= 6.2
 sphinx_book_theme >= 1.0.1, <2.0
 sphinx-copybutton
diff --git a/README.md b/README.md
index fff0122..ccd9e05 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ representations.
 
 ## Getting started
 
-`pytket-pyquil` is available for Python 3.9, 3.10 and 3.11, on Linux, MacOS
+`pytket-pyquil` is available for Python 3.10, 3.11 and 3.12, on Linux, MacOS
 and Windows. To install, run:
 
 ```shell
diff --git a/_metadata.py b/_metadata.py
index 9cc5c03..c86b841 100644
--- a/_metadata.py
+++ b/_metadata.py
@@ -1,2 +1,2 @@
-__extension_version__ = "0.32.0"
+__extension_version__ = "0.33.0"
 __extension_name__ = "pytket-pyquil"
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 91a5e8c..7dd51cc 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,12 @@
 Changelog
 ~~~~~~~~~
 
+0.33.0 (January 2024)
+---------------------
+
+* Updated pytket version requirement to 1.24.
+* Python 3.12 support added, 3.9 dropped.
+
 0.32.0 (January 2024)
 ---------------------
 
diff --git a/docs/intro.txt b/docs/intro.txt
index 8458783..31e54f0 100644
--- a/docs/intro.txt
+++ b/docs/intro.txt
@@ -8,7 +8,7 @@ programs in the Quil language and running them on the Forest platform.
 run on Rigetti backends and simulators, as well as conversion to and from pyQuil
 representations.
 
-``pytket-pyquil`` is available for Python 3.9, 3.10 and 3.11, on Linux, MacOS and
+``pytket-pyquil`` is available for Python 3.10, 3.11 and 3.12, on Linux, MacOS and
 Windows. To install, run:
 
 ::
diff --git a/pytket/extensions/pyquil/__init__.py b/pytket/extensions/pyquil/__init__.py
index 9dad67f..2013e32 100644
--- a/pytket/extensions/pyquil/__init__.py
+++ b/pytket/extensions/pyquil/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2019-2023 Cambridge Quantum Computing
+# Copyright 2019-2024 Cambridge Quantum Computing
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/pytket/extensions/pyquil/backends/__init__.py b/pytket/extensions/pyquil/backends/__init__.py
index f1fa49e..75e1c79 100644
--- a/pytket/extensions/pyquil/backends/__init__.py
+++ b/pytket/extensions/pyquil/backends/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2019-2023 Cambridge Quantum Computing
+# Copyright 2019-2024 Cambridge Quantum Computing
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/pytket/extensions/pyquil/backends/forest.py b/pytket/extensions/pyquil/backends/forest.py
index 4444cb0..3fc2c8b 100644
--- a/pytket/extensions/pyquil/backends/forest.py
+++ b/pytket/extensions/pyquil/backends/forest.py
@@ -1,4 +1,4 @@
-# Copyright 2019-2023 Cambridge Quantum Computing
+# Copyright 2019-2024 Cambridge Quantum Computing
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/pytket/extensions/pyquil/pyquil_convert.py b/pytket/extensions/pyquil/pyquil_convert.py
index f1b8ecc..81bdd14 100644
--- a/pytket/extensions/pyquil/pyquil_convert.py
+++ b/pytket/extensions/pyquil/pyquil_convert.py
@@ -1,4 +1,4 @@
-# Copyright 2019-2023 Cambridge Quantum Computing
+# Copyright 2019-2024 Cambridge Quantum Computing
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/setup.py b/setup.py
index 0ecede0..de1fdad 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,4 @@
-# Copyright 2020-2023 Cambridge Quantum Computing
+# Copyright 2020-2024 Cambridge Quantum Computing
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@
     version=metadata["__extension_version__"],
     author="TKET development team",
     author_email="tket-support@cambridgequantum.com",
-    python_requires=">=3.8",
+    python_requires=">=3.10",
     project_urls={
         "Documentation": "https://tket.quantinuum.com/extensions/pytket-pyquil/index.html",
         "Source": "https://github.com/CQCL/pytket-pyquil",
@@ -44,15 +44,15 @@
     packages=find_namespace_packages(include=["pytket.*"]),
     include_package_data=True,
     install_requires=[
-        "pytket ~= 1.23",
+        "pytket ~= 1.24",
         "pyquil ~= 3.5",
         "typing-extensions ~= 4.2",
     ],
     classifiers=[
         "Environment :: Console",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "License :: OSI Approved :: Apache Software License",
         "Operating System :: MacOS :: MacOS X",
         "Operating System :: POSIX :: Linux",
diff --git a/tests/pyquil_convert_test.py b/tests/pyquil_convert_test.py
index 1870b6e..3066416 100644
--- a/tests/pyquil_convert_test.py
+++ b/tests/pyquil_convert_test.py
@@ -1,4 +1,4 @@
-# Copyright 2019-2023 Cambridge Quantum Computing
+# Copyright 2019-2024 Cambridge Quantum Computing
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/tests/qvm_backend_test.py b/tests/qvm_backend_test.py
index f487b4c..a5862c5 100644
--- a/tests/qvm_backend_test.py
+++ b/tests/qvm_backend_test.py
@@ -1,4 +1,4 @@
-# Copyright 2019-2023 Cambridge Quantum Computing
+# Copyright 2019-2024 Cambridge Quantum Computing
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.