diff --git a/source/_components/zwave.markdown b/source/_components/zwave.markdown
index 554c8c8c573..ba63c7785d0 100644
--- a/source/_components/zwave.markdown
+++ b/source/_components/zwave.markdown
@@ -22,7 +22,13 @@ To allow Home Assistant to talk to your Z-Wave USB stick you will have to compil
 Make sure you have the correct dependencies installed before running the script:
 
 ```bash
-$ apt-get install cython3 libudev-dev python3-sphinx python3-setuptools
+$ sudo apt-get install cython3 libudev-dev python3-sphinx python3-setuptools
+```
+
+Make sure you have at least version 0.23 of cython. 
+
+```bash
+$ sudo pip3 install --upgrade cython
 ```
 
 Then get the OpenZWave files and switch to the `python3` branch: