diff --git a/Containerfile b/Containerfile
index 4018537..b874eb0 100644
--- a/Containerfile
+++ b/Containerfile
@@ -28,3 +28,6 @@ RUN curl -fL -o /tmp/acme.sh https://raw.githubusercontent.com/acmesh-official/a
 
 RUN curl -L https://github.com/go-acme/lego/releases/download/v4.4.0/lego_v4.4.0_linux_amd64.tar.gz \
 	| tar -xz -C /usr/local/bin lego
+
+RUN echo 'KnownHostsCommand /usr/bin/curl -sL https://files.pyrocufflink.blue/ssh_known_hosts' \
+	>> /etc/ssh/ssh_config