diff --git a/Dockerfile b/Dockerfile
index a3cf3e5..0e11138 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,6 +26,7 @@ EXPOSE 2812
 
 # Sutty's repository
 RUN echo 'https://alpine.sutty.nl/alpine/v3.11/sutty' >> /etc/apk/repositories
+RUN wget https://alpine.sutty.nl/alpine/sutty.pub -O /etc/apk/keys/sutty.pub
 
 # Use tini as init
 ENTRYPOINT ["/sbin/tini", "--"]