diff --git a/circleci/images/Makefile b/circleci/images/Makefile
index 6b91a55..f7242d6 100644
--- a/circleci/images/Makefile
+++ b/circleci/images/Makefile
@@ -16,8 +16,11 @@ PG_UPGRADE_TESTER_VERSION=$(shell echo ${PG_VERSIONS}|tr ' ' '-'|sed 's/~//g')
 
 STYLE_CHECKER_TOOLS_VERSION=0.8.33
 
-# Upgrade tests for the PG major versions from PG_VERSIONS file
-CITUS_UPGRADE_PG_VERSIONS=$(shell head PG_VERSIONS|cut -c 6-|tr '\n' ' ')
+# Upgrade tests for the PG major versions from PG_VERSIONS file.
+# PG19 is excluded because no Citus release supports it yet; filter it
+# out by name so reordering PG_VERSIONS does not silently change which
+# major is dropped.
+CITUS_UPGRADE_PG_VERSIONS=$(shell grep -v '^PG19=' PG_VERSIONS|cut -c 6-|tr '\n' ' ')
 # 12.1.10 is the latest release of Citus 12 when the test is expanded to cover Citus 12
 CITUS_UPGRADE_VERSIONS_16=v12.1.12
 # Latest minor version of Citus 13
diff --git a/circleci/images/PG_VERSIONS b/circleci/images/PG_VERSIONS
index 98c38dc..debcadf 100644
--- a/circleci/images/PG_VERSIONS
+++ b/circleci/images/PG_VERSIONS
@@ -1,3 +1,4 @@
-PG16=16.13
-PG17=17.9
-PG18=18.3
+PG16=16.14
+PG17=17.10
+PG18=18.4
+PG19=19~beta2
diff --git a/circleci/images/extbuilder/Dockerfile b/circleci/images/extbuilder/Dockerfile
index d703a28..ade1bcd 100644
--- a/circleci/images/extbuilder/Dockerfile
+++ b/circleci/images/extbuilder/Dockerfile
@@ -48,7 +48,8 @@ set -eux
 
 # install key and repositories
 curl -sf https://www.postgresql.org/media/keys/ACCC4CF8.asc | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add -
-echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main" >> /etc/apt/sources.list.d/postgresql.list
+# The "19" component carries the PG19 beta packages, which are not in "main" yet.
+echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main 19" >> /etc/apt/sources.list.d/postgresql.list
 echo "deb https://apt-archive.postgresql.org/pub/repos/apt bookworm-pgdg-archive main" >> /etc/apt/sources.list.d/postgresql.list
 
 apt-get update
diff --git a/circleci/images/exttester/Dockerfile b/circleci/images/exttester/Dockerfile
index 4af0f75..2ee0369 100644
--- a/circleci/images/exttester/Dockerfile
+++ b/circleci/images/exttester/Dockerfile
@@ -153,7 +153,8 @@ set -eux
 
 # install key and repositories
 curl -sf https://www.postgresql.org/media/keys/ACCC4CF8.asc | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add -
-echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main" >> /etc/apt/sources.list.d/postgresql.list
+# The "19" component carries the PG19 beta packages, which are not in "main" yet.
+echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main 19" >> /etc/apt/sources.list.d/postgresql.list
 echo "deb https://apt-archive.postgresql.org/pub/repos/apt bookworm-pgdg-archive main" >> /etc/apt/sources.list.d/postgresql.list
 
 apt-get update
@@ -168,8 +169,12 @@ apt-get install -y --no-install-recommends --allow-downgrades \
     postgresql-${PG_MAJOR}=${pgdg_version} \
     postgresql-client-${PG_MAJOR}=${pgdg_version} \
     postgresql-${PG_MAJOR}-dbgsym=${pgdg_version} \
-    postgresql-server-dev-${PG_MAJOR}=${pgdg_version} \
-    postgresql-${PG_MAJOR}-wal2json
+    postgresql-server-dev-${PG_MAJOR}=${pgdg_version}
+
+# wal2json is not always published for pre-release majors (e.g. PG19 beta), so
+# install it best-effort to avoid breaking the build before the package lands.
+apt-get install -y --no-install-recommends postgresql-${PG_MAJOR}-wal2json \
+    || echo "WARNING: postgresql-${PG_MAJOR}-wal2json not available for PG${PG_MAJOR}, continuing without it"
 
 apt-get install -y --no-install-recommends -t bookworm libdbd-pg-perl
 
diff --git a/circleci/images/failtester/Dockerfile b/circleci/images/failtester/Dockerfile
index ac68c87..2b76ef3 100644
--- a/circleci/images/failtester/Dockerfile
+++ b/circleci/images/failtester/Dockerfile
@@ -54,7 +54,8 @@ RUN <<'EOF'
 
 # install key and repositories
 curl -sf https://www.postgresql.org/media/keys/ACCC4CF8.asc | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add -
-echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main" >> /etc/apt/sources.list.d/postgresql.list
+# The "19" component carries the PG19 beta packages, which are not in "main" yet.
+echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main 19" >> /etc/apt/sources.list.d/postgresql.list
 echo "deb https://apt-archive.postgresql.org/pub/repos/apt bookworm-pgdg-archive main" >> /etc/apt/sources.list.d/postgresql.list
 
 apt-get update
diff --git a/circleci/images/pgupgradetester/Dockerfile b/circleci/images/pgupgradetester/Dockerfile
index 9e0237d..dbc908d 100644
--- a/circleci/images/pgupgradetester/Dockerfile
+++ b/circleci/images/pgupgradetester/Dockerfile
@@ -55,7 +55,8 @@ set -eux
 
 # install key and repositories
 curl -sf https://www.postgresql.org/media/keys/ACCC4CF8.asc | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add -
-echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main" >> /etc/apt/sources.list.d/postgresql.list
+# The "19" component carries the PG19 beta packages, which are not in "main" yet.
+echo "deb https://apt.postgresql.org/pub/repos/apt bookworm-pgdg main 19" >> /etc/apt/sources.list.d/postgresql.list
 echo "deb https://apt-archive.postgresql.org/pub/repos/apt bookworm-pgdg-archive main" >> /etc/apt/sources.list.d/postgresql.list
 
 apt-get update