diff --git a/Dockerfile b/Dockerfile
index def6013..2aaf6ce 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install --no-instal
 RUN cargo build --release
 
 # use a slim image
-FROM debian:bullseye-slim
+FROM debian:bookworm-slim
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends --assume-yes ca-certificates openssl