diff --git a/wiki-docs/Dockerfile b/wiki-docs/Dockerfile
index 94837a4b2b..bb63d18a2a 100755
--- a/wiki-docs/Dockerfile
+++ b/wiki-docs/Dockerfile
@@ -1,12 +1,15 @@
 FROM python:3.9-alpine
 
-RUN apk update
-RUN apk add rsync
-RUN apk add git
-RUN apk add nodejs npm
+# Install system dependencies
+RUN apk update && \
+    apk add --no-cache rsync git nodejs npm && \
+    rm -rf /var/cache/apk/*
+
+# Copy and install Python dependencies
 COPY requirements.txt requirements.txt
 RUN pip install -r requirements.txt --no-cache-dir
 
+# Switch to a non-root user (if 'nonroot' is already created)
 USER nonroot
 
 # Build doc by default