diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bce5766..597ac3e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -25,7 +25,7 @@ before_script:
     wget -qO - https://raw.githubusercontent.com/zerotier/ZeroTierOne/master/doc/contact%40zerotier.com.gpg | apt-key add - && \
     echo "deb http://download.zerotier.com/debian/buster buster main" >> /etc/apt/sources.list && \
     apt update && \
-    apt install zerotier-one && \
+    apt install zerotier-one -y && \
     service zerotier-one start && \
     zerotier-cli join "$ZEROTIER_NETWORK_ID" && \
     zerotier-cli info && \