diff --git a/VBMicrolensing/lib/VBMicrolensingLibrary.h b/VBMicrolensing/lib/VBMicrolensingLibrary.h
index ab41280..862953e 100644
--- a/VBMicrolensing/lib/VBMicrolensingLibrary.h
+++ b/VBMicrolensing/lib/VBMicrolensingLibrary.h
@@ -1,4 +1,4 @@
-// VBMicrolensing v4.3 (2025)
+// VBMicrolensing v4.2 (2025)
 //
 // This code has been developed by Valerio Bozza (University of Salerno) and collaborators.
 // Check the repository at https://github.com/valboz/VBMicrolensing