diff --git a/gradle.properties b/gradle.properties
index f0bd5e8959b31a2b7e9633946c60d6ca42fe46a0..7bbc3f50aad6f15f56c09d14c59702f2617e6ad1 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 relast_version = 0.3.0-137
-relast2uml_version = 1.1.0
+relast2uml_version = 1.2.1-77
 jupyter_version = 5.8.2
 assertj_version = 3.22.0
 grammar2uml_version = 0.2.5-21