diff --git a/json/src/lib.rs b/json/src/lib.rs
index d65c5766..644bba7a 100644
--- a/json/src/lib.rs
+++ b/json/src/lib.rs
@@ -990,6 +990,7 @@ pub enum ScriptPubkeyType {
     Witness_v0_ScriptHash,
     Witness_v1_Taproot,
     Witness_Unknown,
+    Anchor,
 }
 
 #[derive(Clone, PartialEq, Eq, Debug, Deserialize, Serialize)]