diff --git a/Dockerfile b/Dockerfile
index 6042f85..effa5fe 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,7 +21,7 @@ RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selectio
     && curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
     && echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list \
     && apt-get update \
-    && apt-get install yarn \
+    && apt-get install yarn -y \
     && apt-get clean \
     && rm -r /var/lib/apt/lists/*