diff --git a/osu.Game.Rulesets.Touhosu/Difficulty/TouhosuDifficultyCalculator.cs b/osu.Game.Rulesets.Touhosu/Difficulty/TouhosuDifficultyCalculator.cs
index b2abaf8..2eba528 100644
--- a/osu.Game.Rulesets.Touhosu/Difficulty/TouhosuDifficultyCalculator.cs
+++ b/osu.Game.Rulesets.Touhosu/Difficulty/TouhosuDifficultyCalculator.cs
@@ -11,7 +11,7 @@ namespace osu.Game.Rulesets.Touhosu.Difficulty
 {
     public class TouhosuDifficultyCalculator : DifficultyCalculator
     {
-        public TouhosuDifficultyCalculator(Ruleset ruleset, WorkingBeatmap beatmap)
+        public TouhosuDifficultyCalculator(IRulesetInfo ruleset, IWorkingBeatmap beatmap)
             : base(ruleset, beatmap)
         {
         }
diff --git a/osu.Game.Rulesets.Touhosu/TouhosuRuleset.cs b/osu.Game.Rulesets.Touhosu/TouhosuRuleset.cs
index 22e67f8..fb08927 100644
--- a/osu.Game.Rulesets.Touhosu/TouhosuRuleset.cs
+++ b/osu.Game.Rulesets.Touhosu/TouhosuRuleset.cs
@@ -104,11 +104,11 @@ public override IEnumerable<Mod> GetModsFor(ModType type)
             Texture = new TextureStore(new TextureLoaderStore(CreateResourceStore()), false).Get("Textures/logo"),
         };
 
-        public override DifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new TouhosuDifficultyCalculator(this, beatmap);
-
         protected override IEnumerable<HitResult> GetValidHitResults() => new[]
         {
             HitResult.Perfect
         };
+
+        public override DifficultyCalculator CreateDifficultyCalculator(IWorkingBeatmap beatmap) => new TouhosuDifficultyCalculator(RulesetInfo, beatmap);
     }
 }
diff --git a/osu.Game.Rulesets.Touhosu/osu.Game.Rulesets.Touhosu.csproj b/osu.Game.Rulesets.Touhosu/osu.Game.Rulesets.Touhosu.csproj
index 80416db..301fadc 100644
--- a/osu.Game.Rulesets.Touhosu/osu.Game.Rulesets.Touhosu.csproj
+++ b/osu.Game.Rulesets.Touhosu/osu.Game.Rulesets.Touhosu.csproj
@@ -11,6 +11,6 @@
     <EmbeddedResource Include="Resources\**\*" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="ppy.osu.Game" Version="2021.1108.0" />
+    <PackageReference Include="ppy.osu.Game" Version="2021.1120.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file