diff --git a/SnipeitPS.build.ps1 b/SnipeitPS.build.ps1
index 03a623d..48a0ac9 100644
--- a/SnipeitPS.build.ps1
+++ b/SnipeitPS.build.ps1
@@ -88,15 +88,14 @@ task GitStatus -If (Test-Path .git) {
     }
 }
 
-task TestVersions TestPS3, TestPS4, TestPS4, TestPS5
-task TestPS3 {
-    exec {powershell.exe -Version 3 -NoProfile Invoke-Build PesterTests}
-}
-task TestPS4 {
-    exec {powershell.exe -Version 4 -NoProfile Invoke-Build PesterTests}
-}
-task TestPS5 {
-    exec {powershell.exe -Version 5 -NoProfile Invoke-Build PesterTests}
+task TestVersions TestPS
+
+task TestPS {
+    if($env:PShell -eq '7') {
+        exec {pwsh.exe -NoProfile Invoke-Build PesterTests}
+    }else {
+        exec {powershell.exe -NoProfile Invoke-Build PesterTests}
+    }
 }
 
 # Synopsis: Invoke Pester Tests
diff --git a/SnipeitPS/SnipeitPS.psd1 b/SnipeitPS/SnipeitPS.psd1
index 9b5b712..f5c1113 100644
--- a/SnipeitPS/SnipeitPS.psd1
+++ b/SnipeitPS/SnipeitPS.psd1
@@ -33,7 +33,7 @@ Copyright = '(c) 2017 Stephen Maunder. All rights reserved.'
 Description = 'Powershell API for Snipeit Asset Management'
 
 # Minimum version of the Windows PowerShell engine required by this module
-PowerShellVersion = '3.0'
+PowerShellVersion = '5.1'
 
 # Name of the Windows PowerShell host required by this module
 # PowerShellHostName = ''
diff --git a/appveyor.yml b/appveyor.yml
index 228ef4f..3d616c3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,12 +7,15 @@
 #
 ############################################################
 
-# This tells AppVeyor that we need WMF 5 and PowerShell 5.0
-os: WMF 5
+# powershell core and 5.1
+image:
+    - Visual Studio 2017
+    - Visual Studio 2019
 
 environment:
   PSGalleryAPIKey:
     secure: UdM6qhf5B0G8liHhUrwWERCZr44iSqmg4jUq0lwlTjZs4KyeoiwnBzdej0phqIAm
+  PShell: '5'
 
 version: 1.7.{build}
 
@@ -53,15 +56,41 @@ before_build:
 build_script:
     - ps: Invoke-Build -Task Build
 
-# after_build:
-    # - cmd: mdspell %releasePath%\**/*.md --ignore-numbers --ignore-acronyms --report
-
 test_script:
     - ps: Invoke-Build -Task Test
 
 before_deploy:
     - ps: Invoke-Build -Task Deploy
 
+#Build with powershell core
+for:
+  -
+    matrix:
+      only:
+        - image: Visual Studio 2019
+        environment:
+          - PShell: '7'
+        install:
+          - pwsh: |
+                Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force | Out-Null
+                Install-Module InvokeBuild -Scope CurrentUser -Force
+                Install-Module BuildHelpers -Scope CurrentUser -Force
+                Install-Module platyPS -Scope CurrentUser -Force
+                Install-Module Pester -Scope CurrentUser -Force
+                Install-Module PSScriptAnalyzer -Scope CurrentUser -Force
+                $env:releasePath = "$($pwd.Path)\Release"
+        before_build:
+          - pwsh: Invoke-Build -Task ShowDebug
+        build_script:
+          - pwsh: Invoke-Build -Task Build
+
+        test_script:
+          - pwsh: Invoke-Build -Task Test
+
+        before_deploy:
+          - pwsh: Invoke-Build -Task Deploy
+
+
 deploy:
     provider: GitHub
     release: v$(appveyor_build_version)