diff --git a/.github/workflows/dotnetcore.yml b/.github/workflows/dotnetcore.yml
index 1a79cbd..b35ed97 100644
--- a/.github/workflows/dotnetcore.yml
+++ b/.github/workflows/dotnetcore.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v2
         with:
-           dotnet-version: 7.0
+           dotnet-version: 6.0.*
 
       # Publish
       - name: publish on version change
@@ -33,7 +33,7 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v1
         with:
-           dotnet-version: 7.0
+           dotnet-version: 6.0.*
 
       # Publish
       - name: publish on version change
@@ -52,7 +52,7 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v1
         with:
-           dotnet-version: 7.0
+           dotnet-version: 6.0.*
 
       # Publish
       - name: publish on version change