diff --git a/src/dipProof/extensions/timeBoundDidSignature.ts b/src/dipProof/extensions/timeBoundDidSignature.ts
index df2cf7a..30cdb75 100644
--- a/src/dipProof/extensions/timeBoundDidSignature.ts
+++ b/src/dipProof/extensions/timeBoundDidSignature.ts
@@ -21,10 +21,10 @@ import type { Option } from "@polkadot/types-codec"
 import type { Codec } from "@polkadot/types-codec/types"
 
 const defaultValues = {
-  accountIdRuntimeType: "AccountId",
-  blockNumberRuntimeType: "u64",
-  identityDetailsRuntimeType: "Option<u128>",
-  validUntilOffset: new BN(50),
+  accountIdRuntimeType: async () => "AccountId",
+  blockNumberRuntimeType: async () => "u64",
+  identityDetailsRuntimeType: async () => "Option<u128>",
+  validUntilOffset: async () => new BN(50),
 }
 
 /**
@@ -99,16 +99,16 @@ export async function generateTimeBoundDipDidSignature({
     validUntil ??
     (await api.query.system.number())
       .toBn()
-      .add(defaultValues.validUntilOffset)
+      .add(await defaultValues.validUntilOffset())
   const genesis = genesisHash ?? (await api.query.system.blockHash(0))
-  const actualIdentityDetailsRuntimeType = identityDetailsRuntimeType ?? defaultValues.identityDetailsRuntimeType
+  const actualIdentityDetailsRuntimeType = identityDetailsRuntimeType ?? await defaultValues.identityDetailsRuntimeType()
   const identityDetails = (
     await api.query.dipConsumer.identityEntries<Option<Codec>>(toChain(didUri))
   ).unwrapOr(api.createType(actualIdentityDetailsRuntimeType, null))
 
   const signaturePayload = api
     .createType(
-      `(Call, ${identityDetailsRuntimeType}, ${accountIdRuntimeType ?? defaultValues.accountIdRuntimeType}, ${blockNumberRuntimeType ?? defaultValues.blockNumberRuntimeType}, Hash)`,
+      `(Call, ${identityDetailsRuntimeType}, ${accountIdRuntimeType ?? await defaultValues.accountIdRuntimeType()}, ${blockNumberRuntimeType ?? await defaultValues.blockNumberRuntimeType()}, Hash)`,
       [call, identityDetails, submitterAddress, blockNumber, genesis],
     )
     .toU8a()
diff --git a/src/sibling.ts b/src/sibling.ts
index 51e2111..0933050 100644
--- a/src/sibling.ts
+++ b/src/sibling.ts
@@ -26,8 +26,8 @@ import type { Call } from "@polkadot/types/interfaces"
 import type { Codec } from "@polkadot/types-codec/types"
 
 const defaultValues = {
-  includeWeb3Name: () => false,
-  linkedAccounts: () => [],
+  includeWeb3Name: async () => false,
+  linkedAccounts: async () => [],
   providerBlockHeight: async (providerApi: ApiPromise) => {
     const providerLastFinalizedBlockHash =
       await providerApi.rpc.chain.getFinalizedHead()
@@ -104,9 +104,9 @@ export async function generateDipSiblingBaseProof({
     didUri,
     providerApi,
     keyIds,
-    linkedAccounts: linkedAccounts || defaultValues.linkedAccounts(),
+    linkedAccounts: linkedAccounts || await defaultValues.linkedAccounts(),
     version: proofVersion,
-    includeWeb3Name: includeWeb3Name || defaultValues.includeWeb3Name(),
+    includeWeb3Name: includeWeb3Name || await defaultValues.includeWeb3Name(),
   })
 
   return {