diff --git a/Containerfile b/Containerfile
index 84fa0b1..7155300 100644
--- a/Containerfile
+++ b/Containerfile
@@ -15,7 +15,7 @@ COPY aussielunix_Root_CA_168848365996868199089383065266162030969.crt /usr/local/
 
 # update apt and install ca-certificates and dist-upgrade
 RUN apt-get update -yq && \
-    apt-get install ca-certificates && \
+    apt-get -yq install ca-certificates && \
     apt-get -yq dist-upgrade
 
 # Install Hashicorp apt signing key and apt repo