diff --git a/.env b/.env
index f7218a9923..44e944c1f0 100644
--- a/.env
+++ b/.env
@@ -1,2 +1,3 @@
-ATS_VERSION=9.1.2
+ATS_VERSION=9.2.4
 GO_VERSION=1.22.1
+POSTGRES_VERSION=13.16
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbbdb68c1e..38e9a96b8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - [#8081](https://github.com/apache/trafficcontrol/pull/8081) *GH Actions* Updates the versions used for actions/artifact-download and actions/artifact-upload.
 - [#8071](https://github.com/apache/trafficcontrol/pull/8071) *Traffic Ops* Improve validation for the `id` field of the `PUT /deliveryservice_request_comments` endpoint.
 - [#8056](https://github.com/apache/trafficcontrol/pull/8056) Remove the `version` key from compose files and use `docker compose` instead of `docker-compose`.
+- [#8078](https://github.com/apache/trafficcontrol/pull/8078) *Traffic Ops DB* Update Postgres version to 13.16.
 
 ## [8.0.1] - 2024-03-19
 ### Fixed
diff --git a/cache-config/testing/docker/.env b/cache-config/testing/docker/.env
new file mode 120000
index 0000000000..e72b3932f4
--- /dev/null
+++ b/cache-config/testing/docker/.env
@@ -0,0 +1 @@
+../../../.env
\ No newline at end of file
diff --git a/cache-config/testing/docker/docker-compose.yml b/cache-config/testing/docker/docker-compose.yml
index f5e9156567..08712fb8a0 100644
--- a/cache-config/testing/docker/docker-compose.yml
+++ b/cache-config/testing/docker/docker-compose.yml
@@ -35,7 +35,7 @@ volumes:
 
 services:
   db:
-    image: postgres:13.2
+    image: postgres:${POSTGRES_VERSION}
     env_file:
       - variables.env
     ports: 
@@ -50,6 +50,7 @@ services:
       args:
         - OS_DISTRO=${OS_DISTRO:-rockylinux}
         - OS_VERSION=${OS_VERSION:-8}
+        - POSTGRES_VERSION=${POSTGRES_VERSION}
       context: ../../..
       dockerfile: cache-config/testing/docker/traffic_ops/Dockerfile
     volumes:
diff --git a/cache-config/testing/docker/traffic_ops/Dockerfile b/cache-config/testing/docker/traffic_ops/Dockerfile
index c5f9d8c89c..83d1c38b22 100644
--- a/cache-config/testing/docker/traffic_ops/Dockerfile
+++ b/cache-config/testing/docker/traffic_ops/Dockerfile
@@ -39,7 +39,7 @@ RUN set -o nounset -o errexit && \
 	if [[ "${OS_VERSION%%.*}" -eq 7 ]]; then \
 		use_repo=''; \
 		enable_repo=''; \
-		# needed for llvm-toolset-7-clang, which is needed for postgresql13-devel-13.2-1PGDG, required by TO rpm
+		# needed for llvm-toolset-7-clang, which is needed for postgresql13-devel-13.X-1PGDG, required by TO rpm
 		dnf -y install gcc centos-release-scl-rh; \
 	else \
 		use_repo='--repo=pgdg13'; \
diff --git a/docker-compose.yml b/docker-compose.yml
index e308cc2387..83c8d53bbc 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -38,7 +38,7 @@ services:
             - .:/go/src/github.com/apache/trafficcontrol
 
     db:
-        image: postgres:13.2-alpine
+        image: postgres:${POSTGRES_VERSION}-alpine
         ports:
             - 5432:5432
         environment:
diff --git a/docs/source/_ext/atc.py b/docs/source/_ext/atc.py
index 4b020bb63a..6d6d050a1b 100644
--- a/docs/source/_ext/atc.py
+++ b/docs/source/_ext/atc.py
@@ -70,6 +70,33 @@ def atc_go_version(unused_typ: str,
 	strong_node = nodes.strong(major_minor_version, major_minor_version)
 	return [strong_node], []
 
+def atc_postgres_version(
+	unused_typ: None,
+	unused_rawtext: None,
+	unused_text: None,
+	lineno: int,
+	unused_inliner: None,
+	unused_options: None=None,
+	unused_content: None=None
+) -> Tuple[List[nodes.Node], List[nodes.Node]]:
+	"""
+	A role that inserts the Postgres version used/required by this version of ATC.
+
+	Example:
+
+		:atc-postgres-version:_
+	"""
+	env_file = os.path.join(os.path.dirname(__file__), "../../../.env")
+	with open(file=env_file, encoding="utf-8") as env_file:
+		env_file_contents = env_file.read()
+
+	matches = re.search(pattern=r"^POSTGRES_VERSION=(\d+\.\d+)$", string=env_file_contents, flags=re.MULTILINE)
+	if matches is None:
+		raise ValueError(f"Postgres version found that could not be parsed: '{env_file_contents}' (from line {lineno})")
+	major_minor_version = matches.group(1)
+	strong_node = nodes.strong(major_minor_version, major_minor_version)
+	return [strong_node], []
+
 # -- Issue role --------------------------------------------------------------
 from docutils import utils
 
@@ -203,6 +230,7 @@ def setup(app: object) -> dict:
 	             text=(visit_impl_node, depart_impl_node))
 	app.add_directive("impl-detail", ImplementationDetail)
 	app.add_role("atc-go-version", atc_go_version)
+	app.add_role("atc-postgres-version", atc_postgres_version)
 	app.add_role("issue", issue_role)
 	app.add_role("pr", pr_role)
 	app.add_role("pull-request", pr_role)
diff --git a/docs/source/admin/traffic_ops.rst b/docs/source/admin/traffic_ops.rst
index db97fb5580..5a8a9f1d10 100644
--- a/docs/source/admin/traffic_ops.rst
+++ b/docs/source/admin/traffic_ops.rst
@@ -87,7 +87,7 @@ Guide
 
 		to-# psql -h pg -U postgres
 		Password for user postgres:
-		psql (13.2)
+		psql (13.16)
 		Type "help" for help.
 
 		postgres=#
diff --git a/docs/source/development/traffic_ops.rst b/docs/source/development/traffic_ops.rst
index 850c4d1c69..f27d28c750 100644
--- a/docs/source/development/traffic_ops.rst
+++ b/docs/source/development/traffic_ops.rst
@@ -28,7 +28,10 @@ Software Requirements
 =====================
 Traffic Ops is only supported on CentOS 7+ systems (although many developers do use Mac OS with some success). Here are the requirements:
 
-- `PostgreSQL 13.2 <https://www.postgresql.org/download/>`_ - the machine where Traffic Ops is running must have the client tool set (e.g. :manpage:`psql(1)`), but the actual database can be run anywhere so long as it is accessible.
+- |install-postgres-link|_ - the machine where Traffic Ops is running must have the client tool set (e.g. :manpage:`psql(1)`), but the actual database can be run anywhere so long as it is accessible.
+
+.. |install-postgres-link| replace:: PostgreSQL :atc-postgres-version:`_`
+.. _install-postgres-link: https://www.postgresql.org/download/
 
 	.. note:: Prior to version 13.2, Traffic Ops used version 9.6. For upgrading an existing Mac OS Homebrew-based PostgreSQL instance, you can use `Homebrew <https://brew.sh/>`_ to easily upgrade from 9.6 to 13.2:
 
diff --git a/infrastructure/cdn-in-a-box/docker-compose.yml b/infrastructure/cdn-in-a-box/docker-compose.yml
index 863d776463..6b0fcca0b4 100644
--- a/infrastructure/cdn-in-a-box/docker-compose.yml
+++ b/infrastructure/cdn-in-a-box/docker-compose.yml
@@ -37,6 +37,8 @@ services:
   # All other components access the database thru the Traffic Ops API
   db:
     build:
+      args:
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
       context: .
       dockerfile: traffic_ops/Dockerfile-db
     hostname: db
diff --git a/infrastructure/cdn-in-a-box/traffic_ops/Dockerfile-db b/infrastructure/cdn-in-a-box/traffic_ops/Dockerfile-db
index 593db61c2c..f824a0b86f 100644
--- a/infrastructure/cdn-in-a-box/traffic_ops/Dockerfile-db
+++ b/infrastructure/cdn-in-a-box/traffic_ops/Dockerfile-db
@@ -19,7 +19,8 @@
 # Dockerfile for trafficops db
 ############################################################
 
-FROM postgres:13.2-alpine
+ARG POSTGRES_VERSION
+FROM postgres:${POSTGRES_VERSION}-alpine
 
 ENV POSTGRES_PASSWORD=$POSTGRES_PASSWORD
 RUN apk add bind-tools \
diff --git a/tc-health-client/testing/docker/.env b/tc-health-client/testing/docker/.env
new file mode 120000
index 0000000000..e72b3932f4
--- /dev/null
+++ b/tc-health-client/testing/docker/.env
@@ -0,0 +1 @@
+../../../.env
\ No newline at end of file
diff --git a/tc-health-client/testing/docker/docker-compose.yml b/tc-health-client/testing/docker/docker-compose.yml
index 8d142aab4e..c01d759012 100644
--- a/tc-health-client/testing/docker/docker-compose.yml
+++ b/tc-health-client/testing/docker/docker-compose.yml
@@ -35,7 +35,7 @@ volumes:
 
 services:
   db:
-    image: postgres:13.2
+    image: postgres:${POSTGRES_VERSION}
     env_file:
       - variables.env
     ports: 
diff --git a/tc-health-client/testing/docker/traffic_ops/Dockerfile b/tc-health-client/testing/docker/traffic_ops/Dockerfile
index 1e999e80f7..f4a33f97c5 100644
--- a/tc-health-client/testing/docker/traffic_ops/Dockerfile
+++ b/tc-health-client/testing/docker/traffic_ops/Dockerfile
@@ -37,7 +37,7 @@ RUN set -o nounset -o errexit && \
 	if [[ "${OS_VERSION%%.*}" -eq 7 ]]; then \
 		use_repo=''; \
 		enable_repo=''; \
-		# needed for llvm-toolset-7-clang, which is needed for postgresql13-devel-13.2-1PGDG, required by TO rpm
+		# needed for llvm-toolset-7-clang, which is needed for postgresql13-devel-13.x-1PGDG, required by TO rpm
 		dnf -y install gcc centos-release-scl-rh; \
 	else \
 		use_repo='--repo=pgdg13'; \
diff --git a/traffic_ops/INSTALL.md b/traffic_ops/INSTALL.md
index 7a3fbcc76b..5edd18575c 100644
--- a/traffic_ops/INSTALL.md
+++ b/traffic_ops/INSTALL.md
@@ -30,7 +30,7 @@ Instructions are here: https://yum.postgresql.org/
 
     `$ sudo yum install https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm`
     
-## Install Postgres 13.2 server (in a container or on the host)
+## Install Postgres 13.16 server (in a container or on the host)
 
 ### on the host:
 
diff --git a/traffic_ops/app/db/trafficvault/test/.env b/traffic_ops/app/db/trafficvault/test/.env
new file mode 120000
index 0000000000..7e66cb76ec
--- /dev/null
+++ b/traffic_ops/app/db/trafficvault/test/.env
@@ -0,0 +1 @@
+../../../../../.env
\ No newline at end of file
diff --git a/traffic_ops/app/db/trafficvault/test/Dockerfile-db-admin b/traffic_ops/app/db/trafficvault/test/Dockerfile-db-admin
index 0ac328a2da..f756e1677b 100644
--- a/traffic_ops/app/db/trafficvault/test/Dockerfile-db-admin
+++ b/traffic_ops/app/db/trafficvault/test/Dockerfile-db-admin
@@ -20,7 +20,7 @@
 ############################################################
 
 FROM centos:7
-ARG POSTGRES_VERSION=13.2
+ARG POSTGRES_VERSION
 ENV POSTGRES_VERSION=$POSTGRES_VERSION
 
 # NOTE: temporary workaround for removal of golang packages from CentOS 7 base repo
diff --git a/traffic_ops/app/db/trafficvault/test/Dockerfile-tvdb b/traffic_ops/app/db/trafficvault/test/Dockerfile-tvdb
index 5fdeeb5a08..9c054d1bfe 100644
--- a/traffic_ops/app/db/trafficvault/test/Dockerfile-tvdb
+++ b/traffic_ops/app/db/trafficvault/test/Dockerfile-tvdb
@@ -19,9 +19,9 @@
 # Dockerfile for traffic vault db
 ############################################################
 
-ARG POSTGRES_VERSION=13.2
+ARG POSTGRES_VERSION
 FROM postgres:${POSTGRES_VERSION}
-ARG POSTGRES_VERSION=13.2
+ARG POSTGRES_VERSION
 ENV POSTGRES_VERSION=$POSTGRES_VERSION
 
 ENV POSTGRES_PASSWORD=twelve
diff --git a/traffic_ops/app/db/trafficvault/test/docker-compose.yml b/traffic_ops/app/db/trafficvault/test/docker-compose.yml
index a833db84cf..b0a4b66d44 100644
--- a/traffic_ops/app/db/trafficvault/test/docker-compose.yml
+++ b/traffic_ops/app/db/trafficvault/test/docker-compose.yml
@@ -32,7 +32,7 @@ services:
       context: .
       dockerfile: Dockerfile-tvdb
       args:
-        POSTGRES_VERSION: ${POSTGRES_VERSION:-13.2}
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
     ports:
       - 5432
 
@@ -41,7 +41,7 @@ services:
       context: .
       dockerfile: Dockerfile-db-admin
       args:
-        POSTGRES_VERSION: ${POSTGRES_VERSION:-13.2}
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
         TRAFFIC_OPS_RPM: traffic_ops.rpm
     depends_on:
       - tvdb
diff --git a/traffic_ops/build/build_rpm.sh b/traffic_ops/build/build_rpm.sh
index 96043dedaf..126cb2a6fe 100755
--- a/traffic_ops/build/build_rpm.sh
+++ b/traffic_ops/build/build_rpm.sh
@@ -111,8 +111,9 @@ initBuildArea() {
 	cp "$TO_DIR"/build/traffic_ops.spec "$RPMBUILD"/SPECS/. || \
 		 { echo "Could not copy spec files: $?"; return 1; }
 
+	source "${TC_DIR}/.env"
 	PLUGINS="$(grep -l 'AddPlugin(' "${TO_DIR}/traffic_ops_golang/plugin/"*.go | grep -v 'func AddPlugin(' | xargs -I '{}' basename {} '.go')"
-	export PLUGINS
+	export POSTGRES_VERSION PLUGINS
 
 	echo "The build area has been initialized."
 }
diff --git a/traffic_ops/build/traffic_ops.spec b/traffic_ops/build/traffic_ops.spec
index c2d404c558..0368366390 100644
--- a/traffic_ops/build/traffic_ops.spec
+++ b/traffic_ops/build/traffic_ops.spec
@@ -21,6 +21,7 @@
 %define TRAFFIC_OPS_LOG_DIR /var/log/traffic_ops
 %define TRAFFIC_OPS_ROOT_CERTIFICATES_DIR /var/log/traffic_ops
 %define debug_package %{nil}
+%define postgres_version %{getenv:POSTGRES_VERSION}
 
 Summary:          Traffic Ops
 Name:             traffic_ops
@@ -36,7 +37,7 @@ AutoReqProv:      no
 Requires:         cpanminus, expat-devel, libcurl, libpcap-devel, mkisofs, tar
 Requires:         openssl-devel, perl, perl-core, perl-DBD-Pg, perl-DBI, perl-Digest-SHA1
 Requires:         libidn-devel, libcurl-devel, libcap
-Requires:         postgresql13 >= 13.2
+Requires:         postgresql13 >= %{postgres_version}
 Requires:         perl-JSON, perl-libwww-perl, perl-Test-CPAN-Meta, perl-WWW-Curl, perl-TermReadKey, perl-Crypt-ScryptKDF
 Requires:         python(abi)
 Requires(pre):    /usr/sbin/useradd, /usr/bin/getent
diff --git a/traffic_ops/traffic_ops_golang/README.md b/traffic_ops/traffic_ops_golang/README.md
index 5cfa6d268c..595e72b65f 100644
--- a/traffic_ops/traffic_ops_golang/README.md
+++ b/traffic_ops/traffic_ops_golang/README.md
@@ -24,7 +24,7 @@
 To run `traffic_ops_golang` proxy locally the following prerequisites are needed:
 
 * Golang version greater or equal to the Go version found in the `GO_VERSION` file at the base of this repository. See: [https://golang.org/doc/install](https://golang.org/doc/install)
-* Postgres 13.2 or greater
+* Postgres 13 or greater
 
 
 ## Vendoring and Building
diff --git a/traffic_ops_db/docker/.env b/traffic_ops_db/docker/.env
new file mode 120000
index 0000000000..c7360fb82d
--- /dev/null
+++ b/traffic_ops_db/docker/.env
@@ -0,0 +1 @@
+../../.env
\ No newline at end of file
diff --git a/traffic_ops_db/docker/Dockerfile b/traffic_ops_db/docker/Dockerfile
index ce3f53ab2a..fbb343a397 100644
--- a/traffic_ops_db/docker/Dockerfile
+++ b/traffic_ops_db/docker/Dockerfile
@@ -11,7 +11,8 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 #
-FROM postgres:13.2
+ARG POSTGRES_VERSION
+FROM postgres:${POSTGRES_VERSION}
 
 MAINTAINER dev@trafficcontrol.apache.org
 
diff --git a/traffic_ops_db/docker/docker-compose.yml b/traffic_ops_db/docker/docker-compose.yml
index 4d88ac10ea..68729f927d 100644
--- a/traffic_ops_db/docker/docker-compose.yml
+++ b/traffic_ops_db/docker/docker-compose.yml
@@ -17,6 +17,8 @@ services:
     build:
       context: ..
       dockerfile: /opt/traffic_ops_db/docker/Dockerfile
+      args:
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
     env_file:
       - /opt/traffic_ops_db/docker/docker-compose.env
     ports:
diff --git a/traffic_ops_db/test/docker/.env b/traffic_ops_db/test/docker/.env
new file mode 120000
index 0000000000..e72b3932f4
--- /dev/null
+++ b/traffic_ops_db/test/docker/.env
@@ -0,0 +1 @@
+../../../.env
\ No newline at end of file
diff --git a/traffic_ops_db/test/docker/Dockerfile-db b/traffic_ops_db/test/docker/Dockerfile-db
index e2dc6c32b3..aaccabb4ef 100644
--- a/traffic_ops_db/test/docker/Dockerfile-db
+++ b/traffic_ops_db/test/docker/Dockerfile-db
@@ -19,9 +19,9 @@
 # Dockerfile for trafficops db
 ############################################################
 
-ARG POSTGRES_VERSION=13.2
+ARG POSTGRES_VERSION
 FROM postgres:${POSTGRES_VERSION}
-ARG POSTGRES_VERSION=13.2
+ARG POSTGRES_VERSION
 ENV POSTGRES_VERSION=$POSTGRES_VERSION
 
 ENV POSTGRES_PASSWORD=twelve
diff --git a/traffic_ops_db/test/docker/Dockerfile-db-admin b/traffic_ops_db/test/docker/Dockerfile-db-admin
index 03745c9dc7..8ac88dd3a7 100644
--- a/traffic_ops_db/test/docker/Dockerfile-db-admin
+++ b/traffic_ops_db/test/docker/Dockerfile-db-admin
@@ -20,7 +20,7 @@
 ############################################################
 
 FROM centos:7
-ARG POSTGRES_VERSION=13.2
+ARG POSTGRES_VERSION
 ENV POSTGRES_VERSION=$POSTGRES_VERSION
 
 RUN yum install -y \
diff --git a/traffic_ops_db/test/docker/docker-compose.yml b/traffic_ops_db/test/docker/docker-compose.yml
index 8764e775d1..2bb2e65e33 100644
--- a/traffic_ops_db/test/docker/docker-compose.yml
+++ b/traffic_ops_db/test/docker/docker-compose.yml
@@ -32,7 +32,7 @@ services:
       context: .
       dockerfile: Dockerfile-db
       args:
-        POSTGRES_VERSION: ${POSTGRES_VERSION:-13.2}
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
     ports:
       - 5432
 
@@ -41,7 +41,7 @@ services:
       context: .
       dockerfile: Dockerfile-db-admin
       args:
-        POSTGRES_VERSION: ${POSTGRES_VERSION:-13.2}
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
         TRAFFIC_OPS_RPM: traffic_ops.rpm
     depends_on:
       - db