diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 6582e6758ba..0955822f8b8 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -3,9 +3,9 @@
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="6.0.0-beta.21101.7">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="6.0.0-beta.21105.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>2b430e5bbfaec37a6cead2f0cf79157f01f1a623</Sha>
+      <Sha>fc83e59329203724d4a63c4f6c843be62983a35e</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/common/dotnet-install.sh b/eng/common/dotnet-install.sh
index 25b69f8787f..d6efeb44340 100755
--- a/eng/common/dotnet-install.sh
+++ b/eng/common/dotnet-install.sh
@@ -49,13 +49,8 @@ while [[ $# > 0 ]]; do
   shift
 done
 
-# Use uname to determine what the CPU is.
-cpuname=$(uname -p)
-# Some Linux platforms report unknown for platform, but the arch for machine.
-if [[ "$cpuname" == "unknown" ]]; then
-  cpuname=$(uname -m)
-fi
-
+# Use uname to determine what the CPU is, see https://en.wikipedia.org/wiki/Uname#Examples
+cpuname=$(uname -m)
 case $cpuname in
   aarch64)
     buildarch=arm64
diff --git a/global.json b/global.json
index 440fe8f946c..2e7ddb75dd7 100644
--- a/global.json
+++ b/global.json
@@ -12,7 +12,7 @@
     }
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "6.0.0-beta.21101.7",
+    "Microsoft.DotNet.Arcade.Sdk": "6.0.0-beta.21105.5",
     "Microsoft.DotNet.Helix.Sdk": "2.0.0-beta.19069.2"
   }
 }