diff --git a/Acrolinx.Sidebar/Acrolinx.Sidebar.csproj b/Acrolinx.Sidebar/Acrolinx.Sidebar.csproj
index 87e7a2aa..90e0c4f0 100644
--- a/Acrolinx.Sidebar/Acrolinx.Sidebar.csproj
+++ b/Acrolinx.Sidebar/Acrolinx.Sidebar.csproj
@@ -147,7 +147,7 @@
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.10" />
     <PackageReference Include="Diff.Match.Patch" Version="3.0.1" />
-    <PackageReference Include="log4net" Version="3.2.0" />
+    <PackageReference Include="log4net" Version="3.3.0" />
     <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3537.50" />
     <PackageReference Include="System.Resources.Extensions" Version="10.0.3" />
   </ItemGroup>