diff --git a/ExtLibs/GMap.NET.Core/GMap.NET.Core.csproj b/ExtLibs/GMap.NET.Core/GMap.NET.Core.csproj
index 5820b3af72..ff9938f9bb 100644
--- a/ExtLibs/GMap.NET.Core/GMap.NET.Core.csproj
+++ b/ExtLibs/GMap.NET.Core/GMap.NET.Core.csproj
@@ -27,7 +27,7 @@
     <EmbeddedResource Remove="Resources\Resource1.resx" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="BouncyCastle.Cryptography" Version="2.0.0" />
+    <PackageReference Include="BouncyCastle.Cryptography" Version="2.4.0" />
   </ItemGroup>
   <ItemGroup>
     <Compile Update="GMap.NET.ObjectModel\ObservableCollection.cs" />
diff --git a/ExtLibs/px4uploader/px4uploader.csproj b/ExtLibs/px4uploader/px4uploader.csproj
index a425485216..d2d168d5e4 100644
--- a/ExtLibs/px4uploader/px4uploader.csproj
+++ b/ExtLibs/px4uploader/px4uploader.csproj
@@ -32,7 +32,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="BouncyCastle.Cryptography" Version="2.0.0" />
+    <PackageReference Include="BouncyCastle.Cryptography" Version="2.4.0" />
     <PackageReference Include="System.Reflection.Emit.ILGeneration" Version="4.7.0" />
     <PackageReference Include="System.Reflection.Emit.Lightweight" Version="4.7.0" />
     <PackageReference Include="System.Reflection.Primitives" Version="4.3.0" />
diff --git a/MissionPlanner.csproj b/MissionPlanner.csproj
index 0a189fba21..9ccda5b8e5 100644
--- a/MissionPlanner.csproj
+++ b/MissionPlanner.csproj
@@ -174,7 +174,7 @@
       <Version>0.9.7</Version>
     </PackageReference>
     <PackageReference Include="BouncyCastle.Cryptography">
-      <Version>2.0.0</Version>
+      <Version>2.4.0</Version>
     </PackageReference>
     <PackageReference Include="Crc32.NET">
       <Version>1.2.0</Version>