diff --git a/Dockerfile b/Dockerfile
index 565add7..c45a887 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ FROM ubuntu
 
 # Install vnc, xvfb in order to create a 'fake' display and firefox
 RUN apt-get update \
-    && apt-get install -y x11vnc xvfb firefox \
+    && apt-get install -y wget x11vnc xvfb firefox \
     && mkdir ~/.vnc \
     && x11vnc -storepasswd xiaosong ~/.vnc/passwd \
     && bash -c 'echo "firefox" >> /.bashrc' \