diff --git a/CHANGELOG.md b/CHANGELOG.md
index a757d3a75b9c3251659b81e4903acc6ebe377368..e4daaad6763cb210b2cb3acd7dd4a4ce4e81de17 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.1] - 2023-09-15
+### Fixed
+- default license added for old entries
+
 ## [1.3.0] - 2023-09-15
 ### Improvement
 - minerva project can have license attached (#14)
diff --git a/src/main/resources/db/migration/V1.2023.09.14__project_license.sql b/src/main/resources/db/migration/V1.2023.09.14__project_license.sql
index 94a1a49d8a89a99ec194e0c8a31b47ae92a5c99b..f4fc66ebbc8c770e0c857c6ccdcfd20df88c6e96 100644
--- a/src/main/resources/db/migration/V1.2023.09.14__project_license.sql
+++ b/src/main/resources/db/migration/V1.2023.09.14__project_license.sql
@@ -1 +1 @@
-alter table minerva_project add column license varchar not null;
\ No newline at end of file
+alter table minerva_project add column license varchar not null default '';
\ No newline at end of file