diff --git a/README.md b/README.md
index 2c5b88c92..f7c859d66 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,8 @@ then
 
 #### Guide for Helmholtz GPU cluster
 ```
+conda create --name domainlab_py39 python=3.9
+conda activate domainlab_py39
 conda install pytorch==1.12.1 torchvision==0.13.1 torchaudio==0.12.1 cudatoolkit=11.6 -c pytorch -c conda-forge
 conda install torchmetric==0.10.3
 pip install -r requirements_notorch.txt