diff --git a/starknet-providers/src/jsonrpc/mod.rs b/starknet-providers/src/jsonrpc/mod.rs
index fafd66c2..8e83722f 100644
--- a/starknet-providers/src/jsonrpc/mod.rs
+++ b/starknet-providers/src/jsonrpc/mod.rs
@@ -1266,6 +1266,7 @@ impl TryFrom<&JsonRpcError> for StarknetError {
                 .map_err(|_| JsonRpcErrorConversionError::DataParsingFailure)?;
                 Ok(Self::TransactionExecutionError(data))
             }
+            42 => Ok(Self::StorageProofNotSupported),
             51 => Ok(Self::ClassAlreadyDeclared),
             52 => Ok(Self::InvalidTransactionNonce),
             53 => Ok(Self::InsufficientResourcesForValidate),