[Minor] Docker: use apt-transport-https

diff --git a/docker/Dockerfile b/docker/Dockerfile
index a9665062080459ca67152139298c5a1799f577f4..cc9452a418ca57ce82b3a74489f86db767337f77 100644 (file)
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -11,7 +11,7 @@ RUN   set -x \
        && rm -rf "$GNUPGHOME" \
        && apt-key list > /dev/null
 
-RUN    echo "deb http://rspamd.com/apt-stable/ buster main" > /etc/apt/sources.list.d/rspamd.list
+RUN    echo "deb https://rspamd.com/apt-stable/ buster main" > /etc/apt/sources.list.d/rspamd.list
 
 RUN    apt-get update \
        && apt-get install -y rspamd \