diff --git a/examples/Subscription-example_C.4.json b/examples/Subscription-example_C.4.json
index 185ea2aff211ff9532461c081ffb4fca524f8fed..44b4ddd8b5007d3fefc59f83b5ea4127408edda4 100644
--- a/examples/Subscription-example_C.4.json
+++ b/examples/Subscription-example_C.4.json
@@ -30,6 +30,6 @@
   },
   "@context": [
     "http://example.org/ngsi-ld/vehicle.jsonld",
-    "http://uri.etsi.org/ngsi-ld/v1/ngsi-ld-core-context.jsonld"
+    "https://uri.etsi.org/ngsi-ld/v1/ngsi-ld-core-context.jsonld"
   ]
 }