diff --git a/Changes b/Changes
index 448a10af72..21d624ee2a 100644
--- a/Changes
+++ b/Changes
@@ -13,7 +13,7 @@ This major version introduces the concept of build variants, and provides packag
 - Subprocess32 : Updated to version 3.5.4.
 - Appleseed : Updated to version 2.1.0-beta.
 - LZ4 : Added version 1.9.2.
-- Cortex : Updated to version 10.0.0-a77.
+- Cortex : Updated to version 10.0.0-a78.
 
 1.2.0
 -----
diff --git a/Cortex/config.py b/Cortex/config.py
index d4b6bebc85..bbd607ba4c 100644
--- a/Cortex/config.py
+++ b/Cortex/config.py
@@ -2,7 +2,7 @@
 
 	"downloads" : [
 
-		"https://github.com/ImageEngine/cortex/archive/10.0.0-a77.tar.gz"
+		"https://github.com/ImageEngine/cortex/archive/10.0.0-a78.tar.gz"
 
 	],