diff --git a/CryptoTickerBot.Collections/CryptoTickerBot.Collections.csproj b/CryptoTickerBot.Collections/CryptoTickerBot.Collections.csproj
index f7a94c4..3135e0c 100644
--- a/CryptoTickerBot.Collections/CryptoTickerBot.Collections.csproj
+++ b/CryptoTickerBot.Collections/CryptoTickerBot.Collections.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="Polly" Version="6.1.2" />
     <PackageReference Include="System.Collections.Immutable" Version="1.5.0" />
-    <PackageReference Include="System.Reactive" Version="4.1.2" />
+    <PackageReference Include="System.Reactive" Version="5.0.0" />
   </ItemGroup>
 
 </Project>
diff --git a/CryptoTickerBot.Core/CryptoTickerBot.Core.csproj b/CryptoTickerBot.Core/CryptoTickerBot.Core.csproj
index 6b1183e..cf457bc 100644
--- a/CryptoTickerBot.Core/CryptoTickerBot.Core.csproj
+++ b/CryptoTickerBot.Core/CryptoTickerBot.Core.csproj
@@ -16,7 +16,7 @@
     <PackageReference Include="Nito.AsyncEx" Version="5.0.0-pre-05" />
     <PackageReference Include="PurePusherClient" Version="1.1.0" />
     <PackageReference Include="PureWebSockets" Version="2.3.0" />
-    <PackageReference Include="System.Reactive" Version="4.1.2" />
+    <PackageReference Include="System.Reactive" Version="5.0.0" />
   </ItemGroup>
 
   <ItemGroup>