diff --git a/.github/workflows/ci-py.yml b/.github/workflows/ci-py.yml
index f203ff7eb..0239330b3 100644
--- a/.github/workflows/ci-py.yml
+++ b/.github/workflows/ci-py.yml
@@ -44,7 +44,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.10", "3.12"]
+        python-version: ['3.10', '3.13']
 
     steps:
       - uses: actions/checkout@v4
@@ -104,8 +104,8 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - { py: "3.10", coverage: false }
-          - { py: "3.12", coverage: true }
+          - { py: '3.10', coverage: false }
+          - { py: '3.13', coverage: true }
     steps:
       - uses: actions/checkout@v4
 
@@ -167,7 +167,7 @@ jobs:
           version: "0.4.18"
           enable-cache: true
       - name: Install Python
-        run: uv python install 3.12
+        run: uv python install 3.13
 
       - name: Setup dependencies
         run: uv sync
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index ee68e32ae..f35c08d1d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -40,7 +40,7 @@ jobs:
           version: "0.4.18"
           enable-cache: true
       - name: Install Python
-        run: uv python install 3.12
+        run: uv python install 3.13
 
       - name: Build docs
         run: |
diff --git a/.github/workflows/python-wheels.yml b/.github/workflows/python-wheels.yml
index 6c49ae216..57537d387 100644
--- a/.github/workflows/python-wheels.yml
+++ b/.github/workflows/python-wheels.yml
@@ -38,7 +38,7 @@ jobs:
           version: "0.4.18"
           enable-cache: true
       - name: Install Python
-        run: uv python install 3.12
+        run: uv python install 3.13
 
       - name: Build sdist and wheels
         run: |
diff --git a/hugr-py/pyproject.toml b/hugr-py/pyproject.toml
index 88383735b..2766b4bbd 100644
--- a/hugr-py/pyproject.toml
+++ b/hugr-py/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "hugr"
 version = "0.8.1"
-requires-python = ">=3.10,<3.13"
+requires-python = ">=3.10,<3.14"
 description = "Quantinuum's common representation for quantum programs"
 license = { file = "LICENCE" }
 readme = "README.md"
@@ -16,6 +16,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "License :: OSI Approved :: Apache Software License",
     "Operating System :: MacOS :: MacOS X",
     "Operating System :: POSIX :: Linux",
diff --git a/uv.lock b/uv.lock
index 689cbe26b..e0d9030b4 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,5 +1,9 @@
 version = 1
-requires-python = ">=3.10, <3.13"
+requires-python = ">=3.10, <3.14"
+resolution-markers = [
+    "python_full_version < '3.13'",
+    "python_full_version >= '3.13'",
+]
 
 [manifest]
 members = [