Update Dockerfile

Dockerfile

@@ -1,16 +1,18 @@
 FROM openjdk:17-jdk-slim
 
-# Install wget & unzip
+# Install dependencies
 RUN apt-get update && apt-get install -y wget unzip curl
 
 # Install ngrok
 RUN curl -s https://ngrok-agent.s3.amazonaws.com/ngrok.asc | tee /etc/apt/trusted.gpg.d/ngrok.asc > /dev/null \
     && echo "deb https://ngrok-agent.s3.amazonaws.com buster main" | tee /etc/apt/sources.list.d/ngrok.list \
-    && apt-get update && apt-get install ngrok -y
+    && apt-get update && apt-get install -y ngrok
 
-# Download Minecraft server
+# Set working directory
 WORKDIR /server
-RUN wget https://launcher.mojang.com/v1/objects/$(curl -s https://launchermeta.mojang.com/mc/game/version_manifest.json | grep -oP '"url":.*?"' | head -1 | cut -d '"' -f 4 | xargs curl -s | grep -oP '"server":.*?"' | cut -d '"' -f 4) -O server.jar
+
+# Download Minecraft server JAR (1.21.1 latest stable as of Sept 2025)
+RUN wget https://piston-data.mojang.com/v1/objects/34954b870a95337b4f17962a68d2d59ff1073f5d/server.jar -O server.jar
 
 # Accept EULA
 RUN echo "eula=true" > eula.txt
@@ -22,4 +24,5 @@ EXPOSE 25565
 COPY start.sh /server/start.sh
 RUN chmod +x /server/start.sh
 
+# Run server
 CMD ["/server/start.sh"]