diff --git a/C#/CalculatorExceptionHandling/CalculatorExceptionHandling/CalculatorExceptionHandling.csproj b/C#/CalculatorExceptionHandling/CalculatorExceptionHandling/CalculatorExceptionHandling.csproj
index a7fb726..e68cf46 100644
--- a/C#/CalculatorExceptionHandling/CalculatorExceptionHandling/CalculatorExceptionHandling.csproj
+++ b/C#/CalculatorExceptionHandling/CalculatorExceptionHandling/CalculatorExceptionHandling.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="log4net" Version="2.0.8" />
+    <PackageReference Include="log4net" Version="3.3.0" />
   </ItemGroup>
 
   <ItemGroup>