diff --git a/packages/page-contracts/src/Contracts/Call.tsx b/packages/page-contracts/src/Contracts/Call.tsx
index 1055fcfcc0..edd0a9560a 100644
--- a/packages/page-contracts/src/Contracts/Call.tsx
+++ b/packages/page-contracts/src/Contracts/Call.tsx
@@ -172,6 +172,7 @@ function Call (props: Props): React.ReactElement<Props> | null {
               value={endowment}
             />
             <InputNumber
+              bitLength={128}
               defaultValue={DEFAULT_GAS_LIMIT}
               help={t('The maximum amount of gas that can be used by this call. If the code requires more, the call will fail.')}
               isDisabled={isBusy}
diff --git a/packages/page-contracts/src/Modal.tsx b/packages/page-contracts/src/Modal.tsx
index aa35bd9c14..4c8761d9e8 100644
--- a/packages/page-contracts/src/Modal.tsx
+++ b/packages/page-contracts/src/Modal.tsx
@@ -146,6 +146,7 @@ class ContractModal<P extends ContractModalProps, S extends ContractModalState>
 
     return (
       <InputNumber
+        bitLength={128}
         help={t('The maximum amount of gas that can be used by this deployment, if the code requires more, the deployment will fail.')}
         isDisabled={isBusy}
         isError={!isGasValid}
diff --git a/packages/page-contracts/src/constants.ts b/packages/page-contracts/src/constants.ts
index 43ab72ee5e..1316a23955 100644
--- a/packages/page-contracts/src/constants.ts
+++ b/packages/page-contracts/src/constants.ts
@@ -4,7 +4,7 @@
 
 export const ENDOWMENT = 1000;
 
-export const DEFAULT_GAS_LIMIT = '500000';
+export const DEFAULT_GAS_LIMIT = '100000000000';
 
 export const CONTRACT_NULL = {
   abi: null,