diff --git a/packages/geant4/package.py b/packages/geant4/package.py
index 0ff457d8..d7e62679 100644
--- a/packages/geant4/package.py
+++ b/packages/geant4/package.py
@@ -4,6 +4,7 @@
 
 class Geant4(BuiltinGeant4):
     ## Versions with the eAST physics list
+    version("11.1.3.east", git="https://github.com/eic/geant4", branch="east-v11.1.3")
     version("11.1.2.east", git="https://github.com/eic/geant4", branch="east-v11.1.2")
     version("11.1.1.east", git="https://github.com/eic/geant4", branch="east-v11.1.1")