diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index 030881c..b5b645c 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -15,8 +15,6 @@ jobs:
         uses: actions/checkout@v2
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v1
-        with:
-          dotnet-version: '5.0.x'
       - name: Restore
         run: dotnet restore
       - name: Build
diff --git a/README.md b/README.md
index cf104b4..0a54f92 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![NuGet](https://img.shields.io/nuget/v/Prometheus.Client.HttpRequestDurations.svg)](https://www.nuget.org/packages/Prometheus.Client.HttpRequestDurations)
 [![NuGet](https://img.shields.io/nuget/dt/Prometheus.Client.HttpRequestDurations.svg)](https://www.nuget.org/packages/Prometheus.Client.HttpRequestDurations)
-[![CI](https://github.com/PrometheusClientNet/Prometheus.Client.HttpRequestDurations/workflows/CI/badge.svg)](https://github.com/PrometheusClientNet/Prometheus.Client.HttpRequestDurations/actions?query=workflow%3ACI)
+[![CI Master](https://github.com/PrometheusClientNet/Prometheus.Client.HttpRequestDurations/actions/workflows/master.yml/badge.svg)](https://github.com/PrometheusClientNet/Prometheus.Client.HttpRequestDurations/actions/workflows/master.yml)
 [![License MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://opensource.org/licenses/MIT) 
 
 ## Installation