diff --git a/geneit_backend/Dockerfile b/geneit_backend/Dockerfile
index c16eefc..81767fe 100644
--- a/geneit_backend/Dockerfile
+++ b/geneit_backend/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bullseye-slim
+FROM debian:bookworm-slim
 
 RUN apt-get update \
   && apt-get install -y libcurl4 libpq5 \