diff --git a/src/modules/cards/tests/utils/FakeCardPublisher.ts b/src/modules/cards/tests/utils/FakeCardPublisher.ts
index 97343f0d..fcb6be68 100644
--- a/src/modules/cards/tests/utils/FakeCardPublisher.ts
+++ b/src/modules/cards/tests/utils/FakeCardPublisher.ts
@@ -29,7 +29,7 @@ export class FakeCardPublisher implements ICardPublisher {
 
     const cardId = card.cardId.getStringValue();
     // Simulate generating an AT URI based on curator DID and collection/rkey
-    const fakeUri = `at://${curatorId.value}/network.cosmik.card/${cardId}`;
+    const fakeUri = `at://${curatorId.value}/network.cosmik.dev.card/${cardId}`;
     const fakeCid = `fake-cid-${cardId}`;
     const publishedRecordId = PublishedRecordId.create({
       uri: fakeUri,
diff --git a/src/modules/cards/tests/utils/FakeCollectionPublisher.ts b/src/modules/cards/tests/utils/FakeCollectionPublisher.ts
index 30efaf48..bf61d65e 100644
--- a/src/modules/cards/tests/utils/FakeCollectionPublisher.ts
+++ b/src/modules/cards/tests/utils/FakeCollectionPublisher.ts
@@ -33,7 +33,7 @@ export class FakeCollectionPublisher implements ICollectionPublisher {
     const fakeDid = process.env.BSKY_DID || 'did:plc:rlknsba2qldjkicxsmni3vyn';
 
     // Simulate publishing the collection record itself
-    const fakeCollectionUri = `at://${fakeDid}/network.cosmik.collection/${collectionId}`;
+    const fakeCollectionUri = `at://${fakeDid}/network.cosmik.dev.collection/${collectionId}`;
     const fakeCollectionCid = `fake-collection-cid-${collectionId}`;
 
     const collectionRecord = PublishedRecordId.create({
diff --git a/src/modules/cards/tests/utils/builders/CollectionBuilder.ts b/src/modules/cards/tests/utils/builders/CollectionBuilder.ts
index 159464cd..96ba26a2 100644
--- a/src/modules/cards/tests/utils/builders/CollectionBuilder.ts
+++ b/src/modules/cards/tests/utils/builders/CollectionBuilder.ts
@@ -57,7 +57,7 @@ export class CollectionBuilder {
   withPublished(published: boolean): CollectionBuilder {
     if (published) {
       // Create a fake published record ID when marking as published
-      const fakeUri = `at://fake-did/network.cosmik.collection/${this._id?.toString() || 'fake-id'}`;
+      const fakeUri = `at://fake-did/network.cosmik.dev.collection/${this._id?.toString() || 'fake-id'}`;
       const fakeCid = `fake-collection-cid-${this._id?.toString() || 'fake-id'}`;
       this._publishedRecordId = PublishedRecordId.create({
         uri: fakeUri,