diff --git a/README.md b/README.md
index 687ed3d..b1683c0 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ If your primary interest in SimplySerial is for programming CircuitPython device
 # Requirements
 
 * Windows 10 or 11 _(Version [0.6.0](https://github.com/fasteddy516/SimplySerial/releases/tag/v0.6.0) and older will also run on Windows 7, 8 and 8.1)_
-* .NET Framework 4.5 or newer
+* .NET Framework 4.8 or newer
 
 _The required version of .NET framework is already included in supported Windows versions.  If it is missing on your machine, you can download and install it from Microsoft at https://dotnet.microsoft.com/download/dotnet-framework._
 
diff --git a/SimplySerial/App.config b/SimplySerial/App.config
index e707b32..92c094c 100644
--- a/SimplySerial/App.config
+++ b/SimplySerial/App.config
@@ -2,5 +2,5 @@
 <configuration>
     <startup> 
         
-    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/></startup>
 </configuration>