diff --git a/Android/Android.csproj b/Android/Android.csproj
index 53c5eca..58efdd5 100644
--- a/Android/Android.csproj
+++ b/Android/Android.csproj
@@ -2,7 +2,7 @@
     <PropertyGroup>
         <TargetFramework>net8.0-android</TargetFramework>
         <TargetPlatformVersion>34</TargetPlatformVersion>
-        <SupportedOSPlatformVersion>21</SupportedOSPlatformVersion>
+        <SupportedOSPlatformVersion>31</SupportedOSPlatformVersion>
         <OutputType>Exe</OutputType>
         <ApplicationId>de.ellpeck.touchytickets</ApplicationId>
         <ApplicationVersion>140</ApplicationVersion>