diff --git a/.github/workflows/dotnetcore.yml b/.github/workflows/dotnetcore.yml
index ec616b463..53d06208f 100644
--- a/.github/workflows/dotnetcore.yml
+++ b/.github/workflows/dotnetcore.yml
@@ -4,11 +4,9 @@ on:
   push:
     branches:
       - "master"
-      - "rel/v2"
   pull_request:
     branches:
       - "master"
-      - "rel/v2"
     paths:
       - ".github/workflows/dotnetcore.yml"
 
@@ -25,11 +23,6 @@ jobs:
       with:
         dotnet-version: 3.1.301
 
-    - name: Setup .NET 5.0.x
-      uses: actions/setup-dotnet@v1.7.2
-      with:
-        dotnet-version: 5.0.x
-
     - name: Setup .NET 6.0.301
       uses: actions/setup-dotnet@v1.7.2
       with: