diff --git a/postgresql/Dockerfile b/postgresql/Dockerfile
index 2f73b9fc..be7128f0 100644
--- a/postgresql/Dockerfile
+++ b/postgresql/Dockerfile
@@ -15,7 +15,7 @@
 
 # https://hub.docker.com/r/bitnami/postgresql/tags/
 
-FROM cgr.dev/astronomer.io/ap-postgres:17.9
+FROM cgr.dev/astronomer.io/ap-postgres:18.3
 LABEL maintainer="Astronomer <humans@astronomer.io>"
 
 ARG BUILD_NUMBER=-1
diff --git a/postgresql/version.txt b/postgresql/version.txt
index f6e7bcda..32adf198 100644
--- a/postgresql/version.txt
+++ b/postgresql/version.txt
@@ -1 +1 @@
-17.9.0-1
+18.3