diff --git a/inspector-vc/src/main/java/org/oneedtech/inspect/vc/probe/ContextPropertyProbe.java b/inspector-vc/src/main/java/org/oneedtech/inspect/vc/probe/ContextPropertyProbe.java
index a72f26b..6cc9dc1 100644
--- a/inspector-vc/src/main/java/org/oneedtech/inspect/vc/probe/ContextPropertyProbe.java
+++ b/inspector-vc/src/main/java/org/oneedtech/inspect/vc/probe/ContextPropertyProbe.java
@@ -62,11 +62,11 @@ public class ContextPropertyProbe extends Probe<JsonNode> {
 			// TODO uris will change
 			.put(Set.of(OpenBadgeCredential, AchievementCredential, EndorsementCredential),
 					List.of("https://www.w3.org/2018/credentials/v1",
-							"https://imsglobal.github.io/openbadges-specification/context.json")) 
+							"https://purl.imsglobal.org/spec/ob/v3p0/context.json")) 
 			.put(Set.of(ClrCredential),
 					List.of("https://www.w3.org/2018/credentials/v1",
-							"https://dc.imsglobal.org/draft/clr/v2p0/context",
-							"https://imsglobal.github.io/openbadges-specification/context.json"))
+							"https://purl.imsglobal.org/spec/clr/v2p0/context.json",
+							"https://purl.imsglobal.org/spec/ob/v3p0/context.json"))
 			.build();
 
 	public static final String ID = ContextPropertyProbe.class.getSimpleName();
diff --git a/inspector-vc/src/main/java/org/oneedtech/inspect/vc/util/CachingDocumentLoader.java b/inspector-vc/src/main/java/org/oneedtech/inspect/vc/util/CachingDocumentLoader.java
index 2cefa2e..91f2c54 100644
--- a/inspector-vc/src/main/java/org/oneedtech/inspect/vc/util/CachingDocumentLoader.java
+++ b/inspector-vc/src/main/java/org/oneedtech/inspect/vc/util/CachingDocumentLoader.java
@@ -43,7 +43,7 @@ public class CachingDocumentLoader implements DocumentLoader {
 			  .put("https://www.w3.org/ns/odrl.jsonld", Resources.getResource("contexts/odrl.jsonld"))
 			  .put("https://w3id.org/security/suites/ed25519-2020/v1", Resources.getResource("contexts/security-suites-ed25519-2020-v1.jsonld"))
 			  .put("https://www.w3.org/2018/credentials/v1", Resources.getResource("contexts/2018-credentials-v1.jsonld"))
-			  .put("https://imsglobal.github.io/openbadges-specification/context.json", Resources.getResource("contexts/obv3.jsonld"))			  
+			  .put("https://purl.imsglobal.org/spec/ob/v3p0/context.json", Resources.getResource("contexts/obv3.jsonld"))			  
 			  .build();
 	
 	static final LoadingCache<Tuple<String, DocumentLoaderOptions>, Document> documentCache = CacheBuilder.newBuilder()