diff --git a/Containerfile b/Containerfile
index 379dfdb..d2a0c4c 100644
--- a/Containerfile
+++ b/Containerfile
@@ -29,8 +29,9 @@ FROM python:3.11-slim
 LABEL maintainer="FlaskPaste"
 LABEL description="Lightweight secure pastebin REST API"
 
-# Clean base image caches and create non-root user
+# Clean base image caches, upgrade system pip/setuptools, create non-root user
 RUN apt clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
+    && pip install --no-cache-dir --upgrade pip setuptools \
     && groupadd -r flaskpaste && useradd -r -g flaskpaste flaskpaste
 
 # Copy virtual environment from builder