diff --git a/bin/download_scopesim_data.sh b/bin/download_scopesim_data.sh
index fd5e800..a9e53bc 100755
--- a/bin/download_scopesim_data.sh
+++ b/bin/download_scopesim_data.sh
@@ -73,8 +73,7 @@ popd
 
 git clone https://github.com/AstarVienna/ScopeSim_Templates.git
 pushd ScopeSim_Templates
-# ScopeSim_Templates doesn't use poetry yet.
-pip install -e ".[test,dev,docs]"
+poetry install --with=test,dev,docs
 popd
 
 git clone https://github.com/AstarVienna/ScopeSim.git