diff --git a/host/3.0/nanoserver/1809/dotnet.Dockerfile b/host/3.0/nanoserver/1809/dotnet.Dockerfile
index a3bea04d4..2d2c7b0ac 100644
--- a/host/3.0/nanoserver/1809/dotnet.Dockerfile
+++ b/host/3.0/nanoserver/1809/dotnet.Dockerfile
@@ -7,7 +7,7 @@ SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPref
 
 # Retrieve .NET Core SDK
 RUN $dotnet_sdk_version = '5.0.404'; `
-    Invoke-WebRequest -OutFile dotnet.zip https://dotnetcli.azureedge.net/dotnet/Sdk/$dotnet_sdk_version/dotnet-sdk-$dotnet_sdk_version-win-x64.zip; `
+    Invoke-WebRequest -OutFile dotnet.zip https://builds.dotnet.microsoft.com/dotnet/Sdk/$dotnet_sdk_version/dotnet-sdk-$dotnet_sdk_version-win-x64.zip; `
     $dotnet_sha512 = 'a6d254a46e93a41bf41df34c941503cfc5f61af20ffc0abc571bbaf238fd66f0fcc879e7181e1e1af788e96912b31012e817bf1202e55b8f27c17352f3f5528d'; `
     if ((Get-FileHash dotnet.zip -Algorithm sha512).Hash -ne $dotnet_sha512) { `
         Write-Host 'CHECKSUM VERIFICATION FAILED!'; `
diff --git a/host/3.0/nanoserver/1903/dotnet.Dockerfile b/host/3.0/nanoserver/1903/dotnet.Dockerfile
index 58adf629d..0d3dcb0c8 100644
--- a/host/3.0/nanoserver/1903/dotnet.Dockerfile
+++ b/host/3.0/nanoserver/1903/dotnet.Dockerfile
@@ -7,7 +7,7 @@ SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPref
 
 # Retrieve .NET Core SDK
 RUN $dotnet_sdk_version = '3.1.102'; `
-    Invoke-WebRequest -OutFile dotnet.zip https://dotnetcli.azureedge.net/dotnet/Sdk/$dotnet_sdk_version/dotnet-sdk-$dotnet_sdk_version-win-x64.zip; `
+    Invoke-WebRequest -OutFile dotnet.zip https://builds.dotnet.microsoft.com/dotnet/Sdk/$dotnet_sdk_version/dotnet-sdk-$dotnet_sdk_version-win-x64.zip; `
     $dotnet_sha512 = '4fc6efdf696d51c3c0651ab30c662eead668d0936ed2290c72a5d6a155a105c0e954f267924b69e61cffec53076630293dd810221bfac488d5961c243657ceca'; `
     if ((Get-FileHash dotnet.zip -Algorithm sha512).Hash -ne $dotnet_sha512) { `
         Write-Host 'CHECKSUM VERIFICATION FAILED!'; `
diff --git a/host/3.0/nanoserver/1909/dotnet.Dockerfile b/host/3.0/nanoserver/1909/dotnet.Dockerfile
index 5660b5e85..e5c44c2c7 100644
--- a/host/3.0/nanoserver/1909/dotnet.Dockerfile
+++ b/host/3.0/nanoserver/1909/dotnet.Dockerfile
@@ -7,7 +7,7 @@ SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPref
 
 # Retrieve .NET Core SDK
 RUN $dotnet_sdk_version = '3.1.102'; `
-    Invoke-WebRequest -OutFile dotnet.zip https://dotnetcli.azureedge.net/dotnet/Sdk/$dotnet_sdk_version/dotnet-sdk-$dotnet_sdk_version-win-x64.zip; `
+    Invoke-WebRequest -OutFile dotnet.zip https://builds.dotnet.microsoft.com/dotnet/Sdk/$dotnet_sdk_version/dotnet-sdk-$dotnet_sdk_version-win-x64.zip; `
     $dotnet_sha512 = '4fc6efdf696d51c3c0651ab30c662eead668d0936ed2290c72a5d6a155a105c0e954f267924b69e61cffec53076630293dd810221bfac488d5961c243657ceca'; `
     if ((Get-FileHash dotnet.zip -Algorithm sha512).Hash -ne $dotnet_sha512) { `
         Write-Host 'CHECKSUM VERIFICATION FAILED!'; `