diff --git a/aw-design-diagram/subscription-sequence.md b/aw-design-diagram/subscription-sequence.md
index 5caf2138381a4a23d79fdd6f5c0c5b4277751ad7..786277b2cf5554f0743deb4a35e9478579da9f58 100644
--- a/aw-design-diagram/subscription-sequence.md
+++ b/aw-design-diagram/subscription-sequence.md
@@ -1,3 +1,4 @@
+```mermaid
 sequenceDiagram
 participant PCM App
 participant OCM Admin
@@ -16,3 +17,4 @@ participant OCM Proof Manager
   PCM App ->> OCM Proof Manager: Responds with Proof Request.
   OCM Proof Manager ->> OCM Connection Manager Db: Changes the status of Connection to Trusted from Completed if proof verification is successful
   end
+```