diff --git a/src/core/src/bootstrap/Constants.py b/src/core/src/bootstrap/Constants.py
index 400d2c23..b4b7e663 100644
--- a/src/core/src/bootstrap/Constants.py
+++ b/src/core/src/bootstrap/Constants.py
@@ -31,7 +31,7 @@ def __iter__(self):
     UNKNOWN = "Unknown"
 
     # Extension version (todo: move to a different file)
-    EXT_VERSION = "1.6.65"
+    EXT_VERSION = "1.6.66"
 
     # Runtime environments
     TEST = 'Test'
diff --git a/src/extension/src/Constants.py b/src/extension/src/Constants.py
index 6652b8dc..0a98a02a 100644
--- a/src/extension/src/Constants.py
+++ b/src/extension/src/Constants.py
@@ -28,7 +28,7 @@ def __iter__(self):
                         yield item
 
     # Extension version (todo: move to a different file)
-    EXT_VERSION = "1.6.65"
+    EXT_VERSION = "1.6.66"
 
     # Runtime environments
     TEST = 'Test'
diff --git a/src/extension/src/manifest.xml b/src/extension/src/manifest.xml
index e7db1b98..be082630 100644
--- a/src/extension/src/manifest.xml
+++ b/src/extension/src/manifest.xml
@@ -2,7 +2,7 @@
 <ExtensionImage xmlns="http://schemas.microsoft.com/windowsazure">
   <ProviderNameSpace>Microsoft.CPlat.Core</ProviderNameSpace>
   <Type>LinuxPatchExtension</Type>
-  <Version>1.6.65</Version>
+  <Version>1.6.66</Version>
   <Label>Microsoft Azure VM InGuest Patch Extension for Linux Virtual Machines</Label>
   <HostingResources>VmRole</HostingResources>
   <MediaLink></MediaLink>