diff --git a/Dockerfile b/Dockerfile
index 3b17e10..d13355a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ RUN apt-get update && apt-get install -y curl apt-transport-https
 # Install yarn
 RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
 RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
-RUN apt-get update && apt-get install yarn git
+RUN apt-get update && apt-get install -y yarn git
 
 RUN git clone https://github.com/ffrgb/meshviewer.git /opt/meshviewer/ && cd /opt/meshviewer
 RUN yarn