diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2a8f182..bc9254b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 3.0.100
+        dotnet-version: 3.1.100
     # - name: Azure Cosmos Emulator
     #   uses: galvesribeiro/AzureCosmosAction@v1.0.0
     # - name: Start CosmosDB Emulator
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 295d3f9..5fa87b1 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -15,7 +15,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 3.0.100
+        dotnet-version: 3.1.100
     - name: Pack
       working-directory: src/Orleans.Clustering.CosmosDB
       run: dotnet pack --configuration Release -p:Version=${GITHUB_REF##*/v}