diff --git a/graphql.json b/graphql.json
index 8e8391142..590a84077 100644
--- a/graphql.json
+++ b/graphql.json
@@ -2093,6 +2093,18 @@
             "isDeprecated": false,
             "deprecationReason": null
           },
+          {
+            "name": "yParity",
+            "description": null,
+            "args": [],
+            "type": {
+              "kind": "SCALAR",
+              "name": "BigInt",
+              "ofType": null
+            },
+            "isDeprecated": false,
+            "deprecationReason": null
+          },
           {
             "name": "type",
             "description": "Envelope transaction support",
diff --git a/schema.graphqls b/schema.graphqls
index 59ee6e335..765ed05f2 100644
--- a/schema.graphqls
+++ b/schema.graphqls
@@ -189,7 +189,7 @@ type Block {
   raw: Bytes!
 
   """
-  WithdrawalsRoot is withdrawals trie root in this block.
+  WithdrawalsRoot is the withdrawals trie root in this block.
   If withdrawals are unavailable for this block, this field will be null.
   """
   withdrawalsRoot: Bytes32
@@ -535,6 +535,7 @@ type Transaction {
   r: BigInt!
   s: BigInt!
   v: BigInt!
+  yParity: BigInt
 
   """Envelope transaction support"""
   type: Long
@@ -569,4 +570,4 @@ type Withdrawal {
 
   """Amount is the withdrawal value in Gwei."""
   amount: Long!
-}
+}
\ No newline at end of file