diff --git a/_metadata.py b/_metadata.py
index 9669f116..500ed3c5 100644
--- a/_metadata.py
+++ b/_metadata.py
@@ -1,2 +1,2 @@
-__extension_version__ = "0.4.0"
+__extension_version__ = "0.5.0"
 __extension_name__ = "pytket-cutensornet"
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 892af085..2e650597 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,11 @@
 Changelog
 ~~~~~~~~~
 
+0.5.0 (November 2023)
+---------------------
+
+* Updated pytket version requirement to 1.22.
+
 0.4.0 (October 2023)
 --------------------
 
diff --git a/setup.py b/setup.py
index 38582feb..e849b2c4 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 ~= 1.11"],
+    install_requires=["pytket ~= 1.22"],
     classifiers=[
         "Environment :: Console",
         "Programming Language :: Python :: 3.9",