diff --git a/src/benelog_client/events/document.py b/src/benelog_client/events/document.py
index 9df586f..2ea4581 100644
--- a/src/benelog_client/events/document.py
+++ b/src/benelog_client/events/document.py
@@ -56,7 +56,13 @@
 ID_GS1_ORG = "https://id.gs1.org"
 
 #: JSON-LD context of EPCIS 2.0. Belongs on the document, not on the event.
-EPCIS_CONTEXT = "https://ref.gs1.org/standards/epcis/2.0.0/epcis-context.jsonld"
+#:
+#: The UNVERSIONED URL. GS1 publishes the context at
+#: .../standards/epcis/epcis-context.jsonld; .../epcis/2.0.0/... pins a
+#: snapshot we do not mean. ``schemaVersion`` next to it stays "2.0" -- that
+#: is the property's value, not the context version, and GS1's own published
+#: examples carry it that way too.
+EPCIS_CONTEXT = "https://ref.gs1.org/standards/epcis/epcis-context.jsonld"
 
 #: UUIDv5 namespace for the sender-side idempotency keys this library derives
 #: (see :func:`idempotency_key`). Private and arbitrary, as RFC 4122 intends:
diff --git a/tests/test_events.py b/tests/test_events.py
index 92b66d2..ec69a59 100644
--- a/tests/test_events.py
+++ b/tests/test_events.py
@@ -140,9 +140,7 @@ def test_a_pallet_holds_its_children(self) -> None:
 class TestDocument:
     def test_the_context_sits_on_the_document_not_the_event(self) -> None:
         wrapped = document([object_event(action=cbv.OBSERVE, event_time=NOON)])
-        assert wrapped["@context"] == [
-            "https://ref.gs1.org/standards/epcis/2.0.0/epcis-context.jsonld"
-        ]
+        assert wrapped["@context"] == ["https://ref.gs1.org/standards/epcis/epcis-context.jsonld"]
         assert "@context" not in wrapped["epcisBody"]["eventList"][0]
 
 
@@ -411,7 +409,7 @@ def test_a_prefix_from_an_earlier_document_does_not_leak_into_the_next(self) ->
         # canonicalises — weeks later, in production only.
         with_prefix = {
             "@context": [
-                "https://ref.gs1.org/standards/epcis/2.0.0/epcis-context.jsonld",
+                "https://ref.gs1.org/standards/epcis/epcis-context.jsonld",
                 {"ex": "https://one.example.test/ns/"},
             ],
             "type": "EPCISDocument",