diff --git a/base-buster/Dockerfile b/base-buster/Dockerfile
--- a/base-buster/Dockerfile
+++ b/base-buster/Dockerfile
@@ -25,7 +25,7 @@
   echo deb [signed-by=/usr/share/keyrings/elasticsearch-archive-keyring.gpg] https://artifacts.elastic.co/packages/7.x/apt stable main > /etc/apt/sources.list.d/elastic-7.x.list && \
   curl -fsSL https://artifacts.elastic.co/GPG-KEY-elasticsearch | gpg --dearmor > /usr/share/keyrings/elasticsearch-archive-keyring.gpg && \
   echo deb [signed-by=/usr/share/keyrings/cassandra.gpg] https://www.apache.org/dist/cassandra/debian 40x main > /etc/apt/sources.list.d/cassandra.list && \
-  curl -fsSL https://downloads.apache.org/cassandra/KEYS | gpg --dearmor > /usr/share/keyrings/cassandra.gpg && \
+  curl -fsSL https://dlcdn.apache.org/cassandra/KEYS | gpg --dearmor > /usr/share/keyrings/cassandra.gpg && \
   apt-get update && \
   apt-get upgrade -y && \
   apt-get install -y \