diff --git a/Languages/IronPython/App.Debug.config b/Languages/IronPython/App.Debug.config
index b4c84103a0..62a4752b58 100644
--- a/Languages/IronPython/App.Debug.config
+++ b/Languages/IronPython/App.Debug.config
@@ -2,7 +2,7 @@
 <!-- Debug version of App.Config -->
 <configuration>
   <configSections>
-    <section name="microsoft.scripting" type="Microsoft.Scripting.Hosting.Configuration.Section, Microsoft.Scripting, Version=1.1.0.20, Culture=neutral, PublicKeyToken=cde11cd8ecc94417" requirePermission="false"/>
+    <section name="microsoft.scripting" type="Microsoft.Scripting.Hosting.Configuration.Section, Microsoft.Scripting, Version=1.1.1.21, Culture=neutral, PublicKeyToken=cde11cd8ecc94417" requirePermission="false"/>
   </configSections>
 
   <!-- Enable mixed-mode CLRv2 assemblies. -->
@@ -17,7 +17,7 @@
 
   <microsoft.scripting>
     <languages>
-      <language names="IronPython;Python;py" extensions=".py" displayName="IronPython 2.7" type="IronPython.Runtime.PythonContext, IronPython, Version=2.7.6.0, Culture=neutral, PublicKeyToken=cde11cd8ecc94417"/>
+      <language names="IronPython;Python;py" extensions=".py" displayName="IronPython 2.7" type="IronPython.Runtime.PythonContext, IronPython, Version=2.7.6.3, Culture=neutral, PublicKeyToken=cde11cd8ecc94417"/>
     </languages>
   </microsoft.scripting>
 </configuration>
diff --git a/Languages/IronPython/App.Release.config b/Languages/IronPython/App.Release.config
index 2649e84e25..703ab41a5a 100644
--- a/Languages/IronPython/App.Release.config
+++ b/Languages/IronPython/App.Release.config
@@ -2,7 +2,7 @@
 <!-- Release version of App.config -->
 <configuration>
   <configSections>
-    <section name="microsoft.scripting" type="Microsoft.Scripting.Hosting.Configuration.Section, Microsoft.Scripting, Version=1.1.0.20, Culture=neutral, PublicKeyToken=7f709c5b713576e1" requirePermission="false"/>
+    <section name="microsoft.scripting" type="Microsoft.Scripting.Hosting.Configuration.Section, Microsoft.Scripting, Version=1.1.1.21, Culture=neutral, PublicKeyToken=7f709c5b713576e1" requirePermission="false"/>
   </configSections>
 
   <!-- Enable mixed-mode CLRv2 assemblies. -->
@@ -17,7 +17,7 @@
 
   <microsoft.scripting>
     <languages>
-      <language names="IronPython;Python;py" extensions=".py" displayName="IronPython 2.7" type="IronPython.Runtime.PythonContext, IronPython, Version=2.7.6.0, Culture=neutral, PublicKeyToken=7f709c5b713576e1"/>
+      <language names="IronPython;Python;py" extensions=".py" displayName="IronPython 2.7" type="IronPython.Runtime.PythonContext, IronPython, Version=2.7.6.3, Culture=neutral, PublicKeyToken=7f709c5b713576e1"/>
     </languages>
   </microsoft.scripting>
 </configuration>