diff --git a/docker/coder-ubuntu_24-python/Dockerfile b/docker/coder-ubuntu_24-python/Dockerfile
index 6dc8ff4fda5cfeb640253327b7844c725c875bed..1e208d3ce5883fcade87cb31e7225c59b698e6ca 100644
--- a/docker/coder-ubuntu_24-python/Dockerfile
+++ b/docker/coder-ubuntu_24-python/Dockerfile
@@ -8,7 +8,7 @@ RUN apt-get update && apt-get upgrade -y
 RUN apt-get install -y git wget curl
 
 # install python, pip and venv
-RUN apt-get install -y python3 python3-pip python3-venv
+RUN apt-get install -y python3 python3-pip python3-venv cython3
 
 # install pipx
 ENV TZ=Europe/Berlin