diff --git a/ArchiSteamFarm/App.config b/ArchiSteamFarm/App.config
index fd9961fb2..f9eaf8b53 100644
--- a/ArchiSteamFarm/App.config
+++ b/ArchiSteamFarm/App.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
 	<startup>
-		<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1"/>
+		<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.1"/>
 	</startup>
 </configuration>
diff --git a/ArchiSteamFarm/ArchiSteamFarm.csproj b/ArchiSteamFarm/ArchiSteamFarm.csproj
index 526900518..1402e3b3b 100644
--- a/ArchiSteamFarm/ArchiSteamFarm.csproj
+++ b/ArchiSteamFarm/ArchiSteamFarm.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>ArchiSteamFarm</RootNamespace>
     <AssemblyName>ArchiSteamFarm</AssemblyName>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <IsWebBootstrapper>false</IsWebBootstrapper>
     <PublishUrl>publish\</PublishUrl>
diff --git a/SteamAuth/SteamAuth.csproj b/SteamAuth/SteamAuth.csproj
index 0b490ab6a..fa024412e 100644
--- a/SteamAuth/SteamAuth.csproj
+++ b/SteamAuth/SteamAuth.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>SteamAuth</RootNamespace>
     <AssemblyName>SteamAuth</AssemblyName>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>