diff --git a/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs b/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs
index 4f53f841..40cacfcb 100644
--- a/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs
+++ b/NineChronicles.DataProvider.Tests/WorldBossRankingQueryTest.cs
@@ -76,7 +76,8 @@ public async Task WorldBossRanking(bool hex)
         var models = (object[]) data["rankingInfo"];
         Assert.Equal(101, models.Length);
         var raider = (Dictionary<string, object>)models.Last();
-        Assert.Equal(targetAvatarAddress.ToString(), raider["address"]);
+        // FIXME should be use AddressType
+        Assert.Equal(targetAvatarAddress.ToHex(), raider["address"]);
     }
 
     [Fact]
diff --git a/NineChronicles.DataProvider/GraphTypes/WorldBossRankingType.cs b/NineChronicles.DataProvider/GraphTypes/WorldBossRankingType.cs
index 7df8842e..fd95005b 100644
--- a/NineChronicles.DataProvider/GraphTypes/WorldBossRankingType.cs
+++ b/NineChronicles.DataProvider/GraphTypes/WorldBossRankingType.cs
@@ -14,10 +14,12 @@ public WorldBossRankingType()
                 description: "Season ranking.",
                 resolve: context => context.Source.Ranking
             );
-            Field<NonNullGraphType<AddressType>>(
+
+            // FIXME should be use AddressType
+            Field<NonNullGraphType<StringGraphType>>(
                 nameof(WorldBossRankingModel.Address),
                 description: "Address of avatar.",
-                resolve: context => new Address(context.Source.Address!)
+                resolve: context => context.Source.Address
             );
             Field<NonNullGraphType<StringGraphType>>(
                 nameof(WorldBossRankingModel.AvatarName),
diff --git a/NineChronicles.Headless b/NineChronicles.Headless
index 92e0c5c7..1269f378 160000
--- a/NineChronicles.Headless
+++ b/NineChronicles.Headless
@@ -1 +1 @@
-Subproject commit 92e0c5c7e0c5e639673fb4a7ebba0074fcf2564b
+Subproject commit 1269f37810da19318c39eefd1656ac7ef31f4879