diff --git a/tests/Microsoft.DotNet.Docker.Tests/TestAppArtifacts/NuGet.config b/tests/Microsoft.DotNet.Docker.Tests/TestAppArtifacts/NuGet.config
index 5dae513501..bff97919cb 100644
--- a/tests/Microsoft.DotNet.Docker.Tests/TestAppArtifacts/NuGet.config
+++ b/tests/Microsoft.DotNet.Docker.Tests/TestAppArtifacts/NuGet.config
@@ -1,2 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<configuration></configuration>
+<configuration>
+  <packageSources>
+    <clear />
+    <add key="dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" />
+  </packageSources>
+</configuration>
diff --git a/tests/Microsoft.DotNet.Docker.Tests/TestScenarios/TestDockerfile.cs b/tests/Microsoft.DotNet.Docker.Tests/TestScenarios/TestDockerfile.cs
index 57ae2944dd..7279c0a2b3 100644
--- a/tests/Microsoft.DotNet.Docker.Tests/TestScenarios/TestDockerfile.cs
+++ b/tests/Microsoft.DotNet.Docker.Tests/TestScenarios/TestDockerfile.cs
@@ -46,8 +46,6 @@ COPY NuGet.config .
         ? DockerOS.Linux
         : DockerOS.Windows;
 
-    private static bool s_useNuGetConfig = Config.IsNightlyRepo || Config.IsInternal;
-
     private static string[] s_commonArgs = [
         "sdk_image",
         "runtime_image",
@@ -132,30 +130,21 @@ COPY tests/ .
 
     public static TestDockerfile GetBlazorWasmDockerfile(bool useWasmTools)
     {
-        string nugetConfigFileOption = s_useNuGetConfig
-            ? "--configfile NuGet.config"
-            : string.Empty;
-
         StringBuilder buildStageBuilder = new(
             $"""
             FROM $sdk_image AS {TestDockerfile.BuildStageName}
             ARG InternalAccessToken
             ARG port
             EXPOSE $port
+            {CopyNuGetConfigCommands}
             """);
 
-        if (s_useNuGetConfig)
-        {
-            buildStageBuilder.AppendLine();
-            buildStageBuilder.AppendLine(CopyNuGetConfigCommands);
-        }
-
         if (useWasmTools)
         {
             buildStageBuilder.AppendLine();
             buildStageBuilder.AppendLine(
                 $"""
-                RUN dotnet workload install {nugetConfigFileOption} wasm-tools \
+                RUN dotnet workload install --configfile NuGet.config wasm-tools \
                     && . /etc/os-release \
                     && case $ID in \
                         alpine) apk add --no-cache python3 ;; \
@@ -210,17 +199,7 @@ ARG rid
             ARG InternalAccessToken
             ARG port
             EXPOSE $port
-            """);
-
-        if (s_useNuGetConfig)
-        {
-            buildStageBuilder.AppendLine();
-            buildStageBuilder.AppendLine(CopyNuGetConfigCommands);
-        }
-
-        buildStageBuilder.AppendLine();
-        buildStageBuilder.AppendLine(
-            $"""
+            {CopyNuGetConfigCommands}
             WORKDIR /source/app
             COPY app/*.csproj .
             RUN dotnet restore -r {FormatArg("rid")}
diff --git a/tests/Microsoft.DotNet.Docker.Tests/TestSolution.cs b/tests/Microsoft.DotNet.Docker.Tests/TestSolution.cs
index f83b1e18ba..0125aa300a 100644
--- a/tests/Microsoft.DotNet.Docker.Tests/TestSolution.cs
+++ b/tests/Microsoft.DotNet.Docker.Tests/TestSolution.cs
@@ -56,7 +56,7 @@ private string CreateTestSolutionWithSdkImage(string solutionDir, string appType
             CreateProjectWithSdkImage("xunit", _testProjectDir, testProjectContainerName);
             File.Copy(Path.Combine(DockerHelper.TestArtifactsDir, "UnitTests.cs"), Path.Combine(_testProjectDir, "UnitTests.cs"));
 
-            string nuGetConfigFileName = string.Empty;
+            string nuGetConfigFileName = "NuGet.config";
             if (Config.IsInternal)
             {
                 nuGetConfigFileName = "NuGet.config.internal";
@@ -66,12 +66,9 @@ private string CreateTestSolutionWithSdkImage(string solutionDir, string appType
                 nuGetConfigFileName = "NuGet.config.nightly";
             }
 
-            if (!string.IsNullOrEmpty(nuGetConfigFileName))
-            {
-                File.Copy(
-                    Path.Combine(DockerHelper.TestArtifactsDir, nuGetConfigFileName),
-                    Path.Combine(solutionDir, "NuGet.config"));
-            }
+            File.Copy(
+                Path.Combine(DockerHelper.TestArtifactsDir, nuGetConfigFileName),
+                Path.Combine(solutionDir, "NuGet.config"));
 
             File.Copy(Path.Combine(DockerHelper.TestArtifactsDir, ".dockerignore"), Path.Combine(solutionDir, ".dockerignore"));
         }