diff --git a/safe-multimerge.md b/safe-multimerge.md
index af191a4..2b59ade 100644
--- a/safe-multimerge.md
+++ b/safe-multimerge.md
@@ -12,27 +12,27 @@ sequenceDiagram
     participant Server
     Note over Server, Alice: initial data: Hello world
     par conflicting update 1
-        Alice->>+Server: data: Hello, world!
-        Server-->>-Alice: accepted
-        Bob->>+Server: data: Hello, cruel world
-        Server -->> Bob: merge request
-        Carol->>+Server: data: Bye, world
-        Server -->> Carol: merge request
+        Alice ->>+Server: data: Hello, world!
+        Server -->>- Alice: accepted
+        Bob ->>+ Server: data: Hello, cruel world
+        Server -->>- Bob: merge request
+        Carol ->>+ Server: data: Bye, world
+        Server -->>- Carol: merge request
     end
     note left of Server: now "Hello, world!"
 
    par conflicting update 2
         Bob->>+Server: data: Hello, cruel world!
-        Server -->> Bob: accepted
-        Carol->>+Server: data: Bye, world!
-        Server -->> Carol: merge request
+        Server -->>- Bob: accepted
+        Carol->>+ Server: data: Bye, world!
+        Server -->>- Carol: merge request
         Server --) Alice: update data
     end
     note left of Server: now Hello, cruel world!
 
    par update 3
-        Carol->>+Server: data: Bye, cruel world!
-        Server -->> Carol: accepted
+        Carol->>+ Server: data: Bye, cruel world!
+        Server -->>- Carol: accepted
         Server --) Alice: update data
         Server --) Bob: update data
     end