diff --git a/terraform/training/files/backend.tf.gpg b/terraform/training/files/backend.tf.gpg
index cbb1789..e5058aa 100644
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diff --git a/terraform/training/files/frontend.tf.gpg b/terraform/training/files/frontend.tf.gpg
index d7d7875..0a653ee 100644
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diff --git a/terraform/training/files/install-demo-flask.sh b/terraform/training/files/install-demo-flask.sh
index 026385c..d351c2c 100644
--- a/terraform/training/files/install-demo-flask.sh
+++ b/terraform/training/files/install-demo-flask.sh
@@ -1,8 +1,10 @@
 #!/bin/bash
 apt-get update
-apt-get -y install python3-pip git
+apt-get -y install python3-pip git python3-venv
 git clone https://github.com/arnaudmorin/demo-flask /opt/demo-flask
-pip3 install -r /opt/demo-flask/requirements.txt
+python3 -m venv /opt/demo-flask-venv
+/opt/demo-flask-venv/bin/pip install -r /opt/demo-flask/requirements.txt
+sed -i -r 's|^python3|/opt/demo-flask-venv/bin/python|' /opt/demo-flask/start.sh
 cp /opt/demo-flask/demo-flask.service /etc/systemd/system/
 systemctl enable demo-flask.service
 systemctl daemon-reload
diff --git a/terraform/training/files/network.tf.gpg b/terraform/training/files/network.tf.gpg
index c5b5e15..90ad850 100644
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diff --git a/terraform/training/files/output.tf.gpg b/terraform/training/files/output.tf.gpg
index 3b1925d..1033c35 100644
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diff --git a/terraform/training/files/provider.tf.gpg b/terraform/training/files/provider.tf.gpg
index 8bf4c3a..4dbd756 100644
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