diff --git a/Dockerfile b/Dockerfile
index 9561d42..108f5d8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,14 +4,14 @@ MAINTAINER "Cabillot Julien <jcabillot@gmail.com>"
 
 ENV DEBIAN_FRONTEND="noninteractive"
 
-RUN apt-get update && \
-    apt-get install -qq -y gnupg apt-transport-https libasound2 curl && \
+RUN apt-get update -qq && \
+    apt-get install -qq --yes gnupg apt-transport-https libasound2 curl && \
     curl -s "https://updates.signal.org/desktop/apt/keys.asc" | apt-key add - && \
     echo "deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main" > "/etc/apt/sources.list.d/signal-xenial.list" && \
     apt-get update && \
-    apt-get install -y signal-desktop && \
-    apt-get -qqy autoremove --purge && \
-    apt-get -qqy clean all && \
+    apt-get install --yes signal-desktop && \
+    apt-get -qq --yes autoremove --purge && \
+    apt-get -qq --yes clean all && \
     rm -rf "/usr/share/doc/*" \
        "/var/cache/*" \
        "/var/lib/apt/lists/*" \