diff --git a/src/CalendarSyncPlus/CalendarSyncPlus.ExchangeWebServices/packages.config b/src/CalendarSyncPlus/CalendarSyncPlus.ExchangeWebServices/packages.config
index 446fe05..c4c6ee6 100644
--- a/src/CalendarSyncPlus/CalendarSyncPlus.ExchangeWebServices/packages.config
+++ b/src/CalendarSyncPlus/CalendarSyncPlus.ExchangeWebServices/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.8" targetFramework="net45" />
+  <package id="log4net" version="2.0.10" targetFramework="net45" />
   <package id="Microsoft.Exchange.WebServices" version="2.2" targetFramework="net45" />
   <package id="System.Waf.Core" version="4.2.0" targetFramework="net461" />
   <package id="System.Waf.Wpf" version="4.2.0" targetFramework="net461" />