diff --git a/Dockerfile b/Dockerfile
index 1e7213f..045e2cd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,19 @@
+FROM alpine:latest as builder
+
+RUN apk add --no-cache unzip wget
+RUN wget -O /tmp/WinBox_Linux.zip https://download.mikrotik.com/routeros/winbox/4.0beta22/WinBox_Windows.zip && \
+    unzip /tmp/WinBox_Linux.zip -d /tmp/winbox && \
+
+    wget -O /tmp/upx.tar.xz https://github.com/upx/upx/releases/download/v5.0.1/upx-5.0.1-amd64_linux.tar.xz && \
+    tar -xf /tmp/upx.tar.xz -C /tmp && \
+    mv /tmp/winbox/WinBox.exe /WinBox.exe && \
+    /tmp/upx-5.0.1-amd64_linux/upx /WinBox.exe
+
 FROM git.merith.xyz/gns3/base-vnc:latest
 
 RUN apk add --no-cache wine wget
 
-# Pre-download Winbox
-RUN wget -O /winbox64.exe https://download.mikrotik.com/routeros/winbox/3.42/winbox64.exe
+COPY --from=builder /WinBox.exe /WinBox.exe
 
 # Preload Wine Mono
 RUN mkdir -p /usr/share/wine/mono && \
@@ -12,4 +22,4 @@ RUN mkdir -p /usr/share/wine/mono && \
     wine msiexec /i /usr/share/wine/mono/wine-mono.msi /qn
 
 COPY ./entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
+RUN chmod +x /entrypoint.sh
\ No newline at end of file