diff --git a/test/pages/connectedRobots/ConnectedRobots.test.tsx b/test/pages/connectedRobots/ConnectedRobots.test.tsx
index ffea6e3..c2d3749 100644
--- a/test/pages/connectedRobots/ConnectedRobots.test.tsx
+++ b/test/pages/connectedRobots/ConnectedRobots.test.tsx
@@ -13,7 +13,7 @@ class MockEventSource {
     mockInstances.push(this);
   }
 
-  sendMessage(data: any) {
+  sendMessage(data: string) {
     // Trigger whatever the component listens to
     this.onmessage?.({ data } as MessageEvent);
   }