diff --git a/version.txt b/version.txt
index 89fecd3..23bf783 100644
--- a/version.txt
+++ b/version.txt
@@ -1,7 +1,8 @@
 Format: yyyy-mm-dd
 date-released: "2025-01-14"
 
-const int major_version = 5;
+const int major_version = 4;
+
 
 const int minor_version = 0;
 
@@ -11,5 +12,6 @@ Format: yyyy-mm-dd
 date-released: "2025-01-14"
 
 
-version: 5.0.1
+version: 4.0.0
+