diff --git a/Jenkinsfile b/Jenkinsfile
index 403e7f1..a603f28 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -49,7 +49,7 @@ pipeline {
             // restore nuget packages
             bat "e:\\nuget.exe restore ${WORKSPACE}\\MConnect.sln"
             // BUILD Develop (della sola libreria)!
-            bat "\"${tool 'MSBuild-16.0'}\" MConnectSDK/MConnectSDK.csproj -target:Build /p:Configuration=${env.config} /p:Platform=\"x86\" /p:OutputPath=bin/${env.config}/ /m"
+            bat "\"${tool 'MSBuild-15.0'}\" MConnectSDK/MConnectSDK.csproj -target:Build /p:Configuration=${env.config} /p:Platform=\"x86\" /p:OutputPath=bin/${env.config}/ /m"
           }
           else {
             echo 'NON faccio test di Build se non per BRANCH DEVELOP...'
@@ -83,7 +83,7 @@ pipeline {
             // restore nuget packages
             bat "e:\\nuget.exe restore ${WORKSPACE}\\MConnect.sln"
             // BUILD!
-            bat "\"${tool 'MSBuild-16.0'}\" MConnectSDK/MConnectSDK.csproj -target:Build /p:Configuration=${env.config} /p:Platform=\"x86\" /p:OutputPath=bin/ /m"
+            bat "\"${tool 'MSBuild-15.0'}\" MConnectSDK/MConnectSDK.csproj -target:Build /p:Configuration=${env.config} /p:Platform=\"x86\" /p:OutputPath=bin/ /m"
             // creo package NuGet...
             cd "Rilasci"
             bat "e:\\nuget.exe pack ${WORKSPACE}\\MConnectSDK\\MConnectSDK.csproj -properties Configuration=Release"