diff --git a/gr-gsm-master/Dockerfile b/gr-gsm-master/Dockerfile
index e75d3186..8be1a203 100644
--- a/gr-gsm-master/Dockerfile
+++ b/gr-gsm-master/Dockerfile
@@ -17,7 +17,7 @@ ENV	BUILD_DEPS \
 	gcc
 
 # Sync pacman
-RUN	pacman -Syu
+RUN	pacman -Syyu --noconfirm
 
 # Install persistent packages
 RUN	pacman -S --needed --noconfirm \