diff --git a/.github/workflows/netcore.yml b/.github/workflows/netcore.yml
index 4bd498fc..5f924b9e 100644
--- a/.github/workflows/netcore.yml
+++ b/.github/workflows/netcore.yml
@@ -19,9 +19,14 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
+    - name: Setup .NET 5
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 5.0.*
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
-
+      with:
+        dotnet-version: 3.1.*
     - name: Build with dotnet
       run: ./build.sh --linksources=true --verbosity=verbose
       shell: bash
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3633058e..79a36c5b 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -14,6 +14,8 @@ jobs:
     - uses: actions/checkout@v1
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 5.0.*
 
     - name: Build with dotnet
       run: ./build.sh --linksources=true --verbosity=verbose
diff --git a/global.json b/global.json
deleted file mode 100644
index 14afd189..00000000
--- a/global.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "sdk": {
-    "version": "3.1.200",
-    "rollForward": "latestMinor"
-  }
-}