diff --git a/ob_v3p0/context-3.0.3.json b/ob_v3p0/context-3.0.3.json
index 114ab138..194cc990 100644
--- a/ob_v3p0/context-3.0.3.json
+++ b/ob_v3p0/context-3.0.3.json
@@ -61,6 +61,9 @@
         },
         "version": {
           "@id": "https://purl.imsglobal.org/spec/vc/ob/vocab.html#version"
+        },
+        "inLanguage": {
+          "@id": "https://schema.org/inLanguage"
         }
       }
     },
@@ -331,6 +334,9 @@
         "type": "@type",
         "version": {
           "@id": "https://purl.imsglobal.org/spec/vc/ob/vocab.html#version"
+        },
+        "inLanguage": {
+          "@id": "https://schema.org/inLanguage"
         }
       }
     },
@@ -417,6 +423,9 @@
       "@id": "https://purl.imsglobal.org/spec/vc/ob/vocab.html#image",
       "@type": "@id"
     },
+    "inLanguage": {
+      "@id": "https://schema.org/inLanguage"
+    },
     "name": {
       "@id": "https://schema.org/name"
     },