diff --git a/Dockerfile b/Dockerfile
index a0fbaf3..d98bb81 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM buildpack-deps:bookworm
+FROM buildpack-deps:jammy
 # explicitly set user/group IDs
 RUN set -eux; \
 	groupadd -r postgres --gid=999; \