diff --git a/docker/scripts/install-python-deps.sh b/docker/scripts/install-python-deps.sh
index 01a6eaa7..f1942498 100755
--- a/docker/scripts/install-python-deps.sh
+++ b/docker/scripts/install-python-deps.sh
@@ -1,10 +1,8 @@
 #!/bin/bash
 set -eou pipefail
 
-# Upgrade PIP; Arch Linux's version of pip is outdated for Poetry.
-pip install --upgrade pip
-
 if [ ! -z "${COMPOSE+x}" ]; then
+    export PIP_BREAK_SYSTEM_PACKAGES=1
     poetry config virtualenvs.create false
 fi
 poetry install --no-interaction --no-ansi