diff --git a/documentations/timeline.md b/documentations/timeline.md
index c408f65..6c7bf52 100644
--- a/documentations/timeline.md
+++ b/documentations/timeline.md
@@ -1,4 +1,7 @@
 ```mermaid
+{
+  "theme": "neutral"
+}
 gantt
 %%Timeline created 11-04-2023
 %%use Mermaid.js for visualization