diff --git a/example/UC3-ECG.ttl b/example/UC3-ECG.ttl
index c417950453ec78818d99833fc209ebfbb7c8d086..0f71db00c47b758d3fc577ecb37538e188c40d98 100644
--- a/example/UC3-ECG.ttl
+++ b/example/UC3-ECG.ttl
@@ -3,7 +3,7 @@
 @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix saref: <https://saref.etsi.org/saref/core/> .
+@prefix saref: <https://saref.etsi.org/core/v3.1.1/> .
 @prefix s4ehaw: <https://saref.etsi.org/saref4ehaw/> .
 @prefix s4envi: <https://saref.etsi.org/saref4envi/> .
 @prefix s4wear: <https://saref.etsi.org/saref4wear/> .