diff --git a/Dockerfile b/Dockerfile
index c2be374..672248b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-FROM postgres:13.8
+FROM postgres:15
 
 RUN apt-get update
-RUN apt-get -y install postgresql-13-cron
+RUN apt-get -y install postgresql-15-cron
 COPY init-db /docker-entrypoint-initdb.d
 RUN chmod +x /docker-entrypoint-initdb.d/*