diff --git a/wadsrc/static/zscript.txt b/wadsrc/static/zscript.txt
index 11a0e8c5c3..b3565f8a77 100644
--- a/wadsrc/static/zscript.txt
+++ b/wadsrc/static/zscript.txt
@@ -1,4 +1,4 @@
-version "4.12"
+version "4.15"
 
 // Generic engine code
 #include "zscript/engine/base.zs"