diff --git a/contrib/upgrade-isn-isnd.sh b/contrib/upgrade-isn-isnd.sh
new file mode 100755
index 0000000..3dd45af
--- /dev/null
+++ b/contrib/upgrade-isn-isnd.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# compiler tout
+dotnet publish -c Release
+# MAJ du serveur
+sudo systemctl stop isnd
+sudo cp -a src/isnd/bin/Release/netcoreapp2.1/publish/* /srv/www/isnd
+sudo systemctl start isnd
+# MAJ du client
+sudo cp -a src/isn/bin/Release/netcoreapp2.1/* /usr/local/lib/isn
+sudo chmod +x /usr/local/lib/isn/isn.exe
diff --git a/src/isn/isn.csproj b/src/isn/isn.csproj
index 24b526b..e11d38f 100644
--- a/src/isn/isn.csproj
+++ b/src/isn/isn.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>net472</TargetFramework>
     <RootNamespace>nuget_cli</RootNamespace>
     <UserSecretsId>45b74c62-05bc-4603-95b4-3e80ae2fdf50</UserSecretsId>
     <PackageVersion>1.0.1</PackageVersion>