diff --git a/apt_requirements.txt b/apt_requirements.txt
index 0cf83a7c..ac967131 100644
--- a/apt_requirements.txt
+++ b/apt_requirements.txt
@@ -5,6 +5,7 @@ texlive-fonts-recommended
 python3-djangorestframework
 python3-django-reversion
 python3-pip
+python3-pil
 libsasl2-dev libldap2-dev
 libssl-dev
 python3-crypto