diff --git a/files/customize-inner.sh b/files/customize-inner.sh
index 93dcf37..968f811 100755
--- a/files/customize-inner.sh
+++ b/files/customize-inner.sh
@@ -45,6 +45,7 @@ apt -y install postfix
 # Required packages
 apt -y install \
     python3 \
+    python3-venv \
     python3-pip \
     git \
     build-essential \