diff --git a/setup.py b/setup.py
index 81641a5b..23e033b2 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",