diff --git a/build.sh b/build.sh
index b0a0069..110a132 100755
--- a/build.sh
+++ b/build.sh
@@ -10,6 +10,7 @@ fi
 
 # Check the service account before replacing dist.
 sunrise_group=$(id -gn sunrise)
+git pull --ff-only
 npm run build
 install -d -o sunrise -g "$sunrise_group" -m 755 dist/threads-captures
 systemctl restart sunrise-threads.service