diff --git a/scripts/_common.sh b/scripts/_common.sh
index 24083aa..e44de61 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -40,8 +40,17 @@ log_file="${log_path}/${app}.log"
 # COMMON VARIABLES
 #=================================================
 
-# dependencies used by the app
-pkg_dependencies="build-essential python3-dev python3-pip python3-venv git libpq-dev postgresql postgresql-contrib"
+# Needed base dependencies:
+pkg_dependencies="build-essential python3-dev python3-pip python3-venv git"
+
+# For pillow:
+pkg_dependencies="${pkg_dependencies} libjpeg-dev"
+
+# Postgres and Python's "psycopg2":
+pkg_dependencies="${pkg_dependencies} libpq-dev postgresql postgresql-contrib"
+
+# Needed for lxml: https://lxml.de/installation.html#requirements
+pkg_dependencies="${pkg_dependencies} libxml2-dev libxslt-dev"
 
 #=================================================
 # Redis HELPERS