diff --git a/osu.Desktop/OsuGameDesktop.cs b/osu.Desktop/OsuGameDesktop.cs
index c62d2ee99f..62d8c17058 100644
--- a/osu.Desktop/OsuGameDesktop.cs
+++ b/osu.Desktop/OsuGameDesktop.cs
@@ -59,7 +59,7 @@ namespace osu.Desktop
             try
             {
                 using (RegistryKey key = Registry.ClassesRoot.OpenSubKey("osu"))
-                    stableInstallPath = key?.OpenSubKey(@"shell\open\command")?.GetValue(string.Empty).ToString()?.Split('"')[1].Replace("osu!.exe", "");
+                    stableInstallPath = key?.OpenSubKey(@"shell\open\command")?.GetValue(string.Empty)?.ToString()?.Split('"')[1].Replace("osu!.exe", "");
 
                 if (checkExists(stableInstallPath))
                     return stableInstallPath;
diff --git a/osu.Desktop/osu.Desktop.csproj b/osu.Desktop/osu.Desktop.csproj
index 62e8f7c518..7b80ca64d0 100644
--- a/osu.Desktop/osu.Desktop.csproj
+++ b/osu.Desktop/osu.Desktop.csproj
@@ -28,7 +28,7 @@
     <PackageReference Include="ppy.squirrel.windows" Version="1.9.0.4" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.2.6" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.2.6" />
-    <PackageReference Include="Microsoft.Win32.Registry" Version="4.7.0" />
+    <PackageReference Include="Microsoft.Win32.Registry" Version="5.0.0" />
     <PackageReference Include="DiscordRichPresence" Version="1.0.150" />
     <!-- .NET 3.1 SDK seems to cause issues with a runtime specification. This will likely be resolved in .NET 5. -->
     <PackageReference Include="System.IO.FileSystem.Primitives" Version="4.3.0" />
diff --git a/osu.Game.Tournament/IPC/FileBasedIPC.cs b/osu.Game.Tournament/IPC/FileBasedIPC.cs
index 999ce61ac8..71417d1cc6 100644
--- a/osu.Game.Tournament/IPC/FileBasedIPC.cs
+++ b/osu.Game.Tournament/IPC/FileBasedIPC.cs
@@ -243,7 +243,7 @@ namespace osu.Game.Tournament.IPC
                 string stableInstallPath;
 
                 using (RegistryKey key = Registry.ClassesRoot.OpenSubKey("osu"))
-                    stableInstallPath = key?.OpenSubKey(@"shell\open\command")?.GetValue(string.Empty).ToString().Split('"')[1].Replace("osu!.exe", "");
+                    stableInstallPath = key?.OpenSubKey(@"shell\open\command")?.GetValue(string.Empty)?.ToString()?.Split('"')[1].Replace("osu!.exe", "");
 
                 if (ipcFileExistsInDirectory(stableInstallPath))
                     return stableInstallPath;
diff --git a/osu.Game.Tournament/osu.Game.Tournament.csproj b/osu.Game.Tournament/osu.Game.Tournament.csproj
index 9cce40c9d3..b049542bb0 100644
--- a/osu.Game.Tournament/osu.Game.Tournament.csproj
+++ b/osu.Game.Tournament/osu.Game.Tournament.csproj
@@ -9,6 +9,6 @@
     <ProjectReference Include="..\osu.Game\osu.Game.csproj" />
   </ItemGroup>
   <ItemGroup Label="Package References">
-    <PackageReference Include="Microsoft.Win32.Registry" Version="4.7.0" />
+    <PackageReference Include="Microsoft.Win32.Registry" Version="5.0.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file