diff --git a/.changes/1.9.0-rc1.md b/.changes/1.9.0-rc1.md
index ec1a68c..2b0694d 100644
--- a/.changes/1.9.0-rc1.md
+++ b/.changes/1.9.0-rc1.md
@@ -11,4 +11,3 @@
 ### Contributors
 - [@gshank](https://github.com/gshank) ([#151](https://github.com/dbt-labs/dbt-postgres/issues/151))
 - [@mikealfare](https://github.com/mikealfare) ([#161](https://github.com/dbt-labs/dbt-postgres/issues/161))
-
diff --git a/docker/Dockerfile b/docker/Dockerfile
index cfbc81a..c261439 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -9,7 +9,7 @@ RUN apt-get update \
     build-essential=12.9 \
     ca-certificates=20210119 \
     git=1:2.30.2-1+deb11u2 \
-    libpq-dev=13.14-0+deb11u1 \
+    libpq-dev=13.18-0+deb11u1 \
     make=4.3-4.1 \
     openssh-client=1:8.4p1-5+deb11u3 \
     software-properties-common=0.96.20.2-2.1 \