diff --git a/LICENSE b/LICENSE
index 3ab175fdc..0461ee571 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,2 +1,2 @@
-YEAR: 2024-2025
+YEAR: 2022-2025
 COPYRIGHT HOLDER: epiparameter authors
\ No newline at end of file
diff --git a/LICENSE.md b/LICENSE.md
index e880d1f67..48cd22c9e 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,6 +1,6 @@
 # MIT License
 
-Copyright (c) 2024-2025 epiparameter authors
+Copyright (c) 2022-2025 epiparameter authors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal