diff --git a/Dockerfile b/Dockerfile
index 12c9a3a..1eb7568 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,18 +11,20 @@ WORKDIR /routeros
 
 # Install dependencies
 RUN set -xe \
- && apk add --no-cache --update \
+    && apk add --no-cache --update \
     netcat-openbsd qemu-x86_64 qemu-system-x86_64 \
     busybox-extras iproute2 iputils \
     bridge-utils iptables jq bash python3
 
 # Environments which may be change
-ENV ROUTEROS_VERSION="7.1beta6"
+ENV ROUTEROS_VERSION="6.49.12"
 ENV ROUTEROS_IMAGE="chr-${ROUTEROS_VERSION}.vdi"
-ENV ROUTEROS_PATH="https://download.mikrotik.com/routeros/${ROUTEROS_VERSION}/${ROUTEROS_IMAGE}"
+ENV ROUTEROS_PATH="https://download.mikrotik.com/routeros/${ROUTEROS_VERSION}/${ROUTEROS_IMAGE}.zip"
 
 # Download VDI image from remote site
-RUN wget "$ROUTEROS_PATH" -O "/routeros/$ROUTEROS_IMAGE"
+RUN wget "$ROUTEROS_PATH" -O "/routeros/${ROUTEROS_IMAGE}.zip" && \
+    unzip "/routeros/${ROUTEROS_IMAGE}.zip" -d "/routeros" && \
+    rm -f "/routeros/${ROUTEROS_IMAGE}.zip"
 
 # Copy script to routeros folder
 ADD ["./scripts", "/routeros"]