diff --git a/packages/page-contracts/src/useWeight.ts b/packages/page-contracts/src/useWeight.ts
index 1a8db9105f1a..97819e1b4338 100644
--- a/packages/page-contracts/src/useWeight.ts
+++ b/packages/page-contracts/src/useWeight.ts
@@ -64,7 +64,7 @@ function useWeightImpl (): UseWeight {
       setMegaGas,
       weight,
       weightV2: api.registry.createType('WeightV2', {
-        proofSize: 1310720000,
+        proofSize: 3194304,
         refTime: weight
       })
     };