--- a/tests/src/addCollectionAdmin.test.ts
+++ b/tests/src/addCollectionAdmin.test.ts
@@ -117,7 +117,7 @@
       ];
       const collectionId = await createCollectionExpectSuccess();
 
-      const chainAdminLimit = api.consts.nft.collectionAdminsLimit.toNumber();
+      const chainAdminLimit = (api.consts.nft.collectionAdminsLimit as any).toNumber();
       expect(chainAdminLimit).to.be.equal(5);
 
       for (let i = 0; i < chainAdminLimit; i++) {
--- a/tests/src/collision-tests/adminLimitsOff.test.ts
+++ b/tests/src/collision-tests/adminLimitsOff.test.ts
@@ -34,7 +34,7 @@
     await usingApi(async (api) => {
       const collectionId = await createCollectionExpectSuccess();
 
-      const chainAdminLimit = api.consts.nft.collectionAdminsLimit.toNumber();
+      const chainAdminLimit = (api.consts.nft.collectionAdminsLimit as any).toNumber();
       expect(chainAdminLimit).to.be.equal(5);
 
       const changeAdminTx1 = api.tx.nft.addCollectionAdmin(collectionId, Eve.address);