diff --git a/package.json b/package.json
index ca31fec..1364a65 100644
--- a/package.json
+++ b/package.json
@@ -59,8 +59,7 @@
     "leaflet-gesture-handling": "^1.2.2",
     "leaflet.path.drag": "^0.0.6",
     "mime": "^4.0.1",
-    "moment": "^2.30.1",
-    "ro-crate": "^3.3.5"
+    "ro-crate": "^3.3.8"
   },
   "peerDependencies": {
     "element-plus": "^2.6.0",
diff --git a/src/lib/components/EditorState.js b/src/lib/components/EditorState.js
index b82d4f8..a72e852 100644
--- a/src/lib/components/EditorState.js
+++ b/src/lib/components/EditorState.js
@@ -338,9 +338,7 @@ export class EditorState {
       return;
     }
     if (def.id && !this.crate.getTerm(def.id)) {
-      const newDef = {};
-      newDef[def.name] = def.id;
-      this.crate.addContext(newDef);
+      this.crate.addTermDefinition(def.name, def.id);
     }
   }
 }