diff --git a/data/Dockerfiles/clamd/Dockerfile b/data/Dockerfiles/clamd/Dockerfile
index 41a02e19a..6f38e3591 100644
--- a/data/Dockerfiles/clamd/Dockerfile
+++ b/data/Dockerfiles/clamd/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:buster-slim
+FROM debian:bullseye-slim
 
 LABEL maintainer "André Peters <andre.peters@servercow.de>"