diff --git a/Dockerfile b/Dockerfile
index 8aabdd8..da284cf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN cargo --version
 #RUN make cache-bust
 RUN cargo build --release
 
-FROM debian:bullseye as forms
+FROM debian:bookworm as forms
 LABEL org.opencontainers.image.source https://git.batsense.net/librepages/forms
 RUN apt-get update && apt-get install -y ca-certificates
 RUN useradd -ms /bin/bash -u 1001 forms