diff --git a/appveyor.yml b/appveyor.yml
index 79a41d39c2..81ba53020c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,7 +4,7 @@ image:
 
 version: '{build}'
 
-stack: postgresql 13.4
+stack: postgresql 15
 
 environment:
   PGUSER: postgres
@@ -34,7 +34,10 @@ for:
     only:
     - image: Visual Studio 2022
   services:
-  - postgresql13
+  - postgresql15
+  install:
+  # Temporary workaround for https://help.appveyor.com/discussions/questions/60488-postgresql-version
+  - net start postgresql-x64-15
   # REF: https://github.com/docascode/docfx-seed/blob/master/appveyor.yml
   before_build:
     - pwsh: |
@@ -101,7 +104,7 @@ build_script:
 
     Write-Output "PostgreSQL version:"
     if ($IsWindows) {
-        . "${env:ProgramFiles}\PostgreSQL\13\bin\psql" --version
+        . "${env:ProgramFiles}\PostgreSQL\15\bin\psql" --version
     }
     else {
         psql --version
diff --git a/run-docker-postgres.ps1 b/run-docker-postgres.ps1
index 89a325e3b5..153b93a846 100644
--- a/run-docker-postgres.ps1
+++ b/run-docker-postgres.ps1
@@ -9,4 +9,4 @@ docker run --rm --name jsonapi-dotnet-core-testing       `
  -e POSTGRES_USER=postgres                               `
  -e POSTGRES_PASSWORD=postgres                           `
  -p 5432:5432                                            `
- postgres:13.4
+ postgres:15