diff --git a/Dockerfile b/Dockerfile
index edebb2e..d23e580 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM postgres:17.6@sha256:00bc86618629af00d2937fdc5a5d63db3ff8450acf52f0636ec813c7f4902929
+FROM postgres:17.9@sha256:2cd82735a36356842d5eb1ef80db3ae8f1154172f0f653db48fde079b2a0b7f7
 
 RUN cd /var/lib/postgresql/ && \
     openssl req -new -text -passout pass:abcd -subj /CN=localhost -out server.req -keyout privkey.pem && \