diff --git a/packages/tx-construction/src/tx-builder/TxBuilder.ts b/packages/tx-construction/src/tx-builder/TxBuilder.ts
index 75d1d0225f1..916c32dc266 100644
--- a/packages/tx-construction/src/tx-builder/TxBuilder.ts
+++ b/packages/tx-construction/src/tx-builder/TxBuilder.ts
@@ -91,7 +91,7 @@ export class GenericTxBuilder implements TxBuilder {
   #outputValidator: OutputBuilderValidator;
   #delegateConfig: DelegateConfig;
   #logger: Logger;
-  #handleProvider: HandleProvider | undefined;
+  #handleProvider?: HandleProvider;
   #handles: HandleResolution[];
 
   constructor(dependencies: TxBuilderDependencies) {
diff --git a/packages/util-dev/src/mockProviders/index.ts b/packages/util-dev/src/mockProviders/index.ts
index 261d0c88b3f..ca36c85c02a 100644
--- a/packages/util-dev/src/mockProviders/index.ts
+++ b/packages/util-dev/src/mockProviders/index.ts
@@ -6,4 +6,3 @@ export * from './mockAssetProvider';
 export * from './mockUtxoProvider';
 export * from './mockChainHistoryProvider';
 export * from './mockRewardsProvider';
-export * from './mockKoraLabsHandleProvider';
diff --git a/packages/util-dev/src/mockProviders/mockKoraLabsHandleProvider.ts b/packages/util-dev/src/mockProviders/mockKoraLabsHandleProvider.ts
deleted file mode 100644
index 5aec9bf8bbe..00000000000
--- a/packages/util-dev/src/mockProviders/mockKoraLabsHandleProvider.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-import { Cardano } from '@cardano-sdk/core';
-
-export const getAliceHandleProviderResponse = {
-  handle: 'alice',
-  hasDatum: false,
-  policyId: Cardano.PolicyId('50fdcdbfa3154db86a87e4b5697ae30d272e0bbcfa8122efd3e301cb'),
-  resolvedAddresses: {
-    cardano:
-      'addr_test1qqk4sr4f7vtqzd2w90d5nfu3n59jhhpawyphnek2y7er02nkrezryq3ydtmkg0e7e2jvzg443h0ffzfwd09wpcxy2fuqmcnecd'
-  },
-  resolvedAt: {
-    hash: Cardano.BlockId('10d64cc11e9b20e15b6c46aa7b1fed11246f437e62225655a30ea47bf8cc22d0'),
-    slot: Cardano.Slot(37_834_496)
-  }
-};
-
-/**
- * Provider stub for testing
- */
-export const mockKoraLabsHandleProvider = () => ({
-  healthCheck: jest.fn().mockResolvedValue({ ok: true }),
-  resolveHandles: jest.fn().mockResolvedValue(getAliceHandleProviderResponse)
-});