diff --git a/Dockerfile b/Dockerfile
index fa5c82384ce8f17662c225b148d7b51312c18676..979be7dd28a94bb3647a33987f35abd5d8ae1a2d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bullseye-slim
+FROM debian:buster-slim
 
 ENV LANG=C.UTF-8
 ENV DEBIAN_FRONTEND=noninteractive