diff --git a/Dockerfile b/Dockerfile
index 33cf1b5..2427c7b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,27 +1,32 @@
 # Build stage
-FROM python:3.9-alpine AS builder
+FROM ubuntu:20.04 AS builder
 
-# Set environment variables
-ENV PYTHONDONTWRITEBYTECODE=1 \
+# Set environment variables to avoid interactive prompts
+ENV DEBIAN_FRONTEND=noninteractive \
+    PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1
 
-# Configure apk to use a reliable mirror
-RUN echo "https://mirrors.tuna.tsinghua.edu.cn/alpine/v3.18/main" > /etc/apk/repositories && \
-    echo "https://mirrors.tuna.tsinghua.edu.cn/alpine/v3.18/community" >> /etc/apk/repositories
+# Configure apt to use reliable mirrors
+RUN echo "deb http://archive.ubuntu.com/ubuntu focal main restricted universe" > /etc/apt/sources.list && \
+    echo "deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe" >> /etc/apt/sources.list && \
+    echo "deb http://archive.ubuntu.com/ubuntu focal-security main restricted universe" >> /etc/apt/sources.list && \
+    echo "deb http://us.archive.ubuntu.com/ubuntu focal main restricted universe" >> /etc/apt/sources.list
 
-# Install build dependencies
-RUN apk add --no-cache \
+# Install Python 3.9 and build dependencies
+RUN apt-get update -o Acquire::Retries=10 -o Acquire::http::Timeout=30 && \
+    apt-get install -y --no-install-recommends \
+    python3.9 \
+    python3.9-dev \
+    python3-pip \
     gcc \
-    musl-dev \
-    python3-dev \
-    libffi-dev \
-    openssl-dev \
-    make \
-    linux-headers \
-    glibc  # Add glibc compatibility layer for missing symbols
+    g++ \
+    make && \
+    rm -rf /var/lib/apt/lists/* && \
+    ln -sf /usr/bin/python3.9 /usr/bin/python3
 
-# Install MkDocs and plugins with exact versions
-RUN pip install --no-cache-dir \
+# Upgrade pip and install MkDocs and plugins
+RUN python3 -m pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir \
     mkdocs==1.6.1 \
     mkdocs-material==9.5.39 \
     mkdocs-macros-plugin==1.2.0 \
@@ -40,7 +45,20 @@ COPY docs/ ./docs/
 RUN mkdocs build --strict
 
 # Runtime stage
-FROM python:3.9-alpine
+FROM ubuntu:20.04
+
+# Set environment variables
+ENV DEBIAN_FRONTEND=noninteractive \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+# Install Python 3.9 minimal for runtime
+RUN apt-get update -o Acquire::Retries=10 -o Acquire::http::Timeout=30 && \
+    apt-get install -y --no-install-recommends \
+    python3.9 \
+    curl && \
+    rm -rf /var/lib/apt/lists/* && \
+    ln -sf /usr/bin/python3.9 /usr/bin/python3
 
 # Set working directory
 WORKDIR /site
@@ -53,7 +71,7 @@ EXPOSE 80
 
 # Healthcheck to ensure the server is running
 HEALTHCHECK --interval=30s --timeout=3s \
-  CMD wget -qO- http://localhost:80/ || exit 1
+  CMD curl -f http://localhost:80/ || exit 1
 
 # Serve the static site with Python's http.server
-CMD ["python", "-m", "http.server", "80"]
\ No newline at end of file
+CMD ["python3", "-m", "http.server", "80"]
\ No newline at end of file