diff --git a/shengpizi-ransomware/App.config b/shengpizi-ransomware/App.config
index b43fe64..35a77b0 100644
--- a/shengpizi-ransomware/App.config
+++ b/shengpizi-ransomware/App.config
@@ -2,5 +2,5 @@
 <configuration>
     <startup>
         
-    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/></startup>
+    <supportedRuntime version="v2.0.50727"/></startup>
 </configuration>
diff --git a/shengpizi-ransomware/shengpizi-ransomware.vbproj b/shengpizi-ransomware/shengpizi-ransomware.vbproj
index 02f5fe4..7a49dfb 100644
--- a/shengpizi-ransomware/shengpizi-ransomware.vbproj
+++ b/shengpizi-ransomware/shengpizi-ransomware.vbproj
@@ -11,7 +11,7 @@
     <AssemblyName>shengpizi-ransomware</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>WindowsForms</MyType>
-    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v2.0</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>