diff --git a/setup.py b/setup.py
index 352f4efc6a..a2091aee66 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@ def get_long_description():
     description='Pythonic particle-based (super-droplet) cloud microphysics modelling with Jupyter examples',
     use_scm_version=True,
     setup_requires=['setuptools_scm'],
-    install_requires=['ThrustRTC==0.3.10',
+    install_requires=['ThrustRTC==0.3.20',
                       'CURandRTC==0.1.6',
                       'numba==0.53.1',
                       'numpy>=1.20.2',