diff --git a/src/hooks/use-collator-power.ts b/src/hooks/use-collator-power.ts
index 0dde9f7..daf51de 100644
--- a/src/hooks/use-collator-power.ts
+++ b/src/hooks/use-collator-power.ts
@@ -35,7 +35,11 @@ export const useCollatorPower = (
     let sub$$: Subscription | undefined;
 
     if (polkadotApi) {
-      sub$$ = from(polkadotApi.query.darwiniaStaking.exposureCacheStates())
+      sub$$ = from(
+        polkadotApi.query.darwiniaStaking.exposureCacheStates
+          ? polkadotApi.query.darwiniaStaking.exposureCacheStates()
+          : polkadotApi.query.darwiniaStaking.cacheStates()
+      )
         .pipe(
           switchMap((cacheStates) => {
             const index = (cacheStates.toJSON() as ExposureCacheState[]).findIndex((cs) => cs === "Current");
diff --git a/src/providers/staking-provider.tsx b/src/providers/staking-provider.tsx
index 795eb7d..bfa9d7b 100644
--- a/src/providers/staking-provider.tsx
+++ b/src/providers/staking-provider.tsx
@@ -125,7 +125,7 @@ export function StakingProvider({ children }: PropsWithChildren<unknown>) {
   const calcExtraPower = useCallback((stakingRing: bigint, stakingKton: bigint) => stakingRing + stakingKton, []);
 
   useEffect(() => {
-    setMinimumDeposit(BigInt(polkadotApi?.consts.deposit.minLockingAmount.toString() || 0));
+    setMinimumDeposit(BigInt(polkadotApi?.consts.deposit.minLockingAmount?.toString() || 0));
     setMaxCommission(Number(polkadotApi?.consts.darwiniaStaking.maxCommission?.toJSON() || 1000000000) / 10000000);
   }, [polkadotApi]);