diff --git a/README.md b/README.md
index 3b1abbb4b..ed7289ca0 100644
--- a/README.md
+++ b/README.md
@@ -105,7 +105,7 @@ Note: the PSScriptAnalyzer Chocolatey package is provided and supported by the c
 
 #### Requirements
 
-* [.NET Core 2.2.104 SDK](https://www.microsoft.com/net/download/dotnet-core/2.2#sdk-2.2.104) or newer patch release
+* [.NET Core 2.2.300 SDK](https://www.microsoft.com/net/download/dotnet-core/2.2#sdk-2.2.300) or newer patch release
 * [PlatyPS 0.13.0 or greater](https://github.com/PowerShell/platyPS/releases)
 * Optionally but recommended for development: [Visual Studio 2017](https://www.visualstudio.com/downloads/)
 
diff --git a/appveyor.yml b/appveyor.yml
index d3f02b1be..70f1ed0e4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -12,6 +12,8 @@ environment:
     PSVersion: 4
   - APPVEYOR_BUILD_WORKER_IMAGE: Ubuntu
     PowerShellEdition: PowerShellCore
+  - APPVEYOR_BUILD_WORKER_IMAGE: Ubuntu1804
+    PowerShellEdition: PowerShellCore
 
 # cache Nuget packages and dotnet CLI cache
 cache:
diff --git a/global.json b/global.json
index 26f089f55..8846cfb47 100644
--- a/global.json
+++ b/global.json
@@ -1,5 +1,5 @@
 {
     "sdk": {
-        "version": "2.2.104"
+        "version": "2.2.300"
     }
 }