diff --git a/src/obsolete/PrologWorkbench.Core/packages.config b/src/obsolete/PrologWorkbench.Core/packages.config
index a74f312..eaa91bc 100644
--- a/src/obsolete/PrologWorkbench.Core/packages.config
+++ b/src/obsolete/PrologWorkbench.Core/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="CommonServiceLocator" version="1.0" />
-  <package id="log4net" version="2.0.0" />
+  <package id="log4net" version="2.0.10" />
   <package id="Prism" version="4.1.0.0" />
   <package id="Prism.UnityExtensions" version="4.1.0.0" />
   <package id="Unity" version="2.1.505.2" />