diff --git a/Changelog.md b/Changelog.md
index 0be1b84..35cc803 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,8 @@
 ## Unreleased
 
+## v0.16.0 (August 5, 2024)
+* Update pgbouncer to v1.23.1
+
 ## v0.15.0 (May 23, 2024)
 * Support SCRAM authentication, use plain passwords in auth_file
 * Add PGBOUNCER_AUTH_TYPE config and update default to scram-sha-256
diff --git a/README.md b/README.md
index c756d9d..7a72f9c 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ Example usage:
     -----> Multipack app detected
     -----> Fetching custom git buildpack... done
     -----> pgbouncer app detected
-           Using pgbouncer version: 1.7-heroku
+           Using pgbouncer version: 1.23.1-heroku
     -----> Fetching and vendoring pgbouncer into slug
     -----> Moving the configuration generation script into app/bin
     -----> Moving the start-pgbouncer script into app/bin
@@ -92,9 +92,9 @@ that process.
 
 ## PgBouncer Version
 
-- Heroku-20: `v1.17.0`
-- Heroku-22: `v1.17.0`
-- Heroku-24: `v1.17.0`
+- Heroku-20: `v1.23.1`
+- Heroku-22: `v1.23.1`
+- Heroku-24: `v1.23.1`
 
 ## Multiple Databases
 It is possible to connect to multiple databases through pgbouncer by setting
diff --git a/pgbouncer-heroku-20.tgz b/pgbouncer-heroku-20.tgz
index e281664..fe46139 100644
Binary files a/pgbouncer-heroku-20.tgz and b/pgbouncer-heroku-20.tgz differ
diff --git a/pgbouncer-heroku-22.tgz b/pgbouncer-heroku-22.tgz
index bbeaa00..8c9b445 100644
Binary files a/pgbouncer-heroku-22.tgz and b/pgbouncer-heroku-22.tgz differ
diff --git a/pgbouncer-heroku-24.tgz b/pgbouncer-heroku-24.tgz
index 0f77974..5a79019 100644
Binary files a/pgbouncer-heroku-24.tgz and b/pgbouncer-heroku-24.tgz differ
diff --git a/support/pgbouncer-build b/support/pgbouncer-build
index 7b355c0..079ed0b 100755
--- a/support/pgbouncer-build
+++ b/support/pgbouncer-build
@@ -2,7 +2,7 @@
 
 set -euo pipefail
 
-PGBOUNCER_VERSION=${PGBOUNCER_VERSION-1.17.0}
+PGBOUNCER_VERSION=${PGBOUNCER_VERSION-1.23.1}
 
 pgbouncer_tarball_url=https://www.pgbouncer.org/downloads/files/${PGBOUNCER_VERSION}/pgbouncer-${PGBOUNCER_VERSION}.tar.gz