diff --git a/_metadata.py b/_metadata.py
index f793cf1..6a49d38 100644
--- a/_metadata.py
+++ b/_metadata.py
@@ -1,2 +1,2 @@
-__extension_version__ = "0.8.0"
+__extension_version__ = "0.9.0"
 __extension_name__ = "pytket-cutensornet"
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 390be13..a1fc3c7 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,13 @@
+.. currentmodule:: pytket.extensions.cutensornet
+
 Changelog
 ~~~~~~~~~
 
+0.9.0 (October 2024)
+---------------------
+
+* Updated pytket version requirement to 1.33.
+
 0.8.0 (September 2024)
 ----------------------
 
diff --git a/setup.py b/setup.py
index 81641a5..23e033b 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@
     license="Apache 2",
     packages=find_namespace_packages(include=["pytket.*"]),
     include_package_data=True,
-    install_requires=["pytket >= 1.30.0", "networkx >= 2.8.8"],
+    install_requires=["pytket >= 1.33.0", "networkx >= 2.8.8"],
     classifiers=[
         "Environment :: Console",
         "Programming Language :: Python :: 3.10",