diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 11ef36d43f..bc8d065137 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -3,19 +3,23 @@ jobs:
   pool:
     vmImage: 'ubuntu-20.04'
   steps:
-  - task: CmdLine@2
-    displayName: 'Install Nuke'
+  - task: UseDotNet@2
+    displayName: 'Use .NET Core SDK 3.1.414'
     inputs:
-      script: |
-         dotnet tool install --global Nuke.GlobalTool --version 0.24.0
+      version: 3.1.414
+
+  - task: UseDotNet@2
+    displayName: 'Use .NET Core SDK 5.0.402'
+    inputs:
+      version: 5.0.402
+
   - task: CmdLine@2
-    displayName: 'Run Nuke'
+    displayName: 'Run Build'
     inputs:
       script: |
-        export PATH="$PATH:$HOME/.dotnet/tools"
         dotnet --info
         printenv
-        nuke --target CiAzureLinux --configuration=Release
+        ./build.sh --target CiAzureLinux --configuration=Release
 
   - task: PublishTestResults@2
     inputs:
@@ -23,6 +27,7 @@ jobs:
       testResultsFiles: '$(Build.SourcesDirectory)/artifacts/test-results/*.trx'
     condition: not(canceled())
      
+
 - job: macOS
   variables:
     SolutionDir: '$(Build.SourcesDirectory)'
@@ -30,10 +35,15 @@ jobs:
     vmImage: 'macOS-10.15'
   steps:
   - task: UseDotNet@2
-    displayName: 'Use .NET Core SDK 3.1.401'
+    displayName: 'Use .NET Core SDK 3.1.414'
     inputs:
-      version: 3.1.401
+      version: 3.1.414
 
+  - task: UseDotNet@2
+    displayName: 'Use .NET Core SDK 5.0.402'
+    inputs:
+      version: 5.0.402
+      
   - task: CmdLine@2
     displayName: 'Install Mono 5.18'
     inputs:
@@ -45,6 +55,7 @@ jobs:
     displayName: 'Generate avalonia-native'
     inputs:
       script: |
+        export PATH="`pwd`/sdk:$PATH"
         cd src/tools/MicroComGenerator; dotnet run -i ../../Avalonia.Native/avn.idl --cpp ../../../native/Avalonia.Native/inc/avalonia-native.h
 
   - task: Xcode@5
@@ -58,13 +69,7 @@ jobs:
       args: '-derivedDataPath ./'
 
   - task: CmdLine@2
-    displayName: 'Install Nuke'
-    inputs:
-      script: |
-       dotnet tool install --global Nuke.GlobalTool --version 0.24.0
-
-  - task: CmdLine@2
-    displayName: 'Run Nuke'
+    displayName: 'Run Build'
     inputs:
       script: |
         export COREHOST_TRACE=0
@@ -72,10 +77,8 @@ jobs:
         export DOTNET_CLI_TELEMETRY_OPTOUT=1
         which dotnet
         dotnet --info
-        export PATH="$PATH:$HOME/.dotnet/tools"
-        dotnet --info
         printenv
-        nuke --target CiAzureOSX --configuration Release --skip-previewer
+        ./build.sh --target CiAzureOSX --configuration Release --skip-previewer
 
   - task: PublishTestResults@2
     inputs:
@@ -102,9 +105,14 @@ jobs:
     SolutionDir: '$(Build.SourcesDirectory)'
   steps:
   - task: UseDotNet@2
-    displayName: 'Use .NET Core SDK 3.1.401'
+    displayName: 'Use .NET Core SDK 3.1.414'
+    inputs:
+      version: 3.1.414
+
+  - task: UseDotNet@2
+    displayName: 'Use .NET Core SDK 5.0.402'
     inputs:
-      version: 3.1.401
+      version: 5.0.402
 
   - task: CmdLine@2
     displayName: 'Install Nuke'
diff --git a/build.sh b/build.sh
index bd162fab9b..9532b4fbe0 100755
--- a/build.sh
+++ b/build.sh
@@ -20,55 +20,11 @@ SCRIPT_DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)
 ###########################################################################
 
 BUILD_PROJECT_FILE="$SCRIPT_DIR/nukebuild/_build.csproj"
-TEMP_DIRECTORY="$SCRIPT_DIR//.tmp"
-
-DOTNET_GLOBAL_FILE="$SCRIPT_DIR//global.json"
-DOTNET_INSTALL_URL="https://raw.githubusercontent.com/dotnet/cli/master/scripts/obtain/dotnet-install.sh"
-DOTNET_CHANNEL="Current"
 
 export DOTNET_CLI_TELEMETRY_OPTOUT=1
 export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
 export NUGET_XMLDOC_MODE="skip"
 
-###########################################################################
-# EXECUTION
-###########################################################################
-
-function FirstJsonValue {
-    perl -nle 'print $1 if m{"'$1'": "([^"\-]+)",?}' <<< ${@:2}
-}
-
-# If global.json exists, load expected version
-if [ -f "$DOTNET_GLOBAL_FILE" ]; then
-    DOTNET_VERSION=$(FirstJsonValue "version" $(cat "$DOTNET_GLOBAL_FILE"))
-    if [ "$DOTNET_VERSION" == ""  ]; then
-        unset DOTNET_VERSION
-    fi
-fi
-
-# If dotnet is installed locally, and expected version is not set or installation matches the expected version
-if [[ -x "$(command -v dotnet)" && (-z ${DOTNET_VERSION+x} || $(dotnet --version) == "$DOTNET_VERSION") || "$SKIP_DOTNET_DOWNLOAD" == "1" ]]; then
-    export DOTNET_EXE="$(command -v dotnet)"
-else
-    DOTNET_DIRECTORY="$TEMP_DIRECTORY/dotnet-unix"
-    export DOTNET_EXE="$DOTNET_DIRECTORY/dotnet"
-    
-    # Download install script
-    DOTNET_INSTALL_FILE="$TEMP_DIRECTORY/dotnet-install.sh"
-    mkdir -p "$TEMP_DIRECTORY"
-    curl -Lsfo "$DOTNET_INSTALL_FILE" "$DOTNET_INSTALL_URL"
-    chmod +x "$DOTNET_INSTALL_FILE"
-    
-    # Install by channel or version
-    if [ -z ${DOTNET_VERSION+x} ]; then
-        "$DOTNET_INSTALL_FILE" --install-dir "$DOTNET_DIRECTORY" --channel "$DOTNET_CHANNEL" --no-path
-    else
-        "$DOTNET_INSTALL_FILE" --install-dir "$DOTNET_DIRECTORY" --version "$DOTNET_VERSION" --no-path
-    fi
-fi
-
-export PATH=$DOTNET_DIRECTORY:$PATH
-
-echo "Microsoft (R) .NET Core SDK version $("$DOTNET_EXE" --version)"
+dotnet --info
 
-"$DOTNET_EXE" run --project "$BUILD_PROJECT_FILE" -- ${BUILD_ARGUMENTS[@]}
+dotnet run --project "$BUILD_PROJECT_FILE" -- ${BUILD_ARGUMENTS[@]}
diff --git a/global.json b/global.json
index b2b2da7c4f..9f83c1ea1e 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
 	"sdk": {
-		"version": "3.1.401"
+		"version": "5.0.402"
 	},
     "msbuild-sdks": {
         "Microsoft.Build.Traversal": "1.0.43",