diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModBlinds.cs b/osu.Game.Rulesets.Osu/Mods/OsuModBlinds.cs
index e3aa8f93d0..39234147a9 100644
--- a/osu.Game.Rulesets.Osu/Mods/OsuModBlinds.cs
+++ b/osu.Game.Rulesets.Osu/Mods/OsuModBlinds.cs
@@ -53,9 +53,9 @@ namespace osu.Game.Rulesets.Osu.Mods
             /// <summary>
             /// Black background boxes behind blind panel textures.
             /// </summary>
-            private Box blackBoxLeft, blackBoxRight;
+            private Box blackBoxLeft = null!, blackBoxRight = null!;
 
-            private Drawable panelLeft, panelRight, bgPanelLeft, bgPanelRight;
+            private Drawable panelLeft = null!, panelRight = null!, bgPanelLeft = null!, bgPanelRight = null!;
 
             private readonly Beatmap<OsuHitObject> beatmap;
 
diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModRelax.cs b/osu.Game.Rulesets.Osu/Mods/OsuModRelax.cs
index 4c70b8f22c..c9c3fdfc89 100644
--- a/osu.Game.Rulesets.Osu/Mods/OsuModRelax.cs
+++ b/osu.Game.Rulesets.Osu/Mods/OsuModRelax.cs
@@ -31,7 +31,7 @@ namespace osu.Game.Rulesets.Osu.Mods
 
         private OsuInputManager osuInputManager;
 
-        private ReplayState<OsuAction> state;
+        private ReplayState<OsuAction>? state;
         private double lastStateChangeTime;
 
         private bool hasReplay;
diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModTarget.cs b/osu.Game.Rulesets.Osu/Mods/OsuModTarget.cs
index 43169dac68..29f5b8f512 100644
--- a/osu.Game.Rulesets.Osu/Mods/OsuModTarget.cs
+++ b/osu.Game.Rulesets.Osu/Mods/OsuModTarget.cs
@@ -403,7 +403,7 @@ namespace osu.Game.Rulesets.Osu.Mods
         /// <param name="hitObjects">The list of hit objects in a beatmap, ordered by StartTime</param>
         /// <param name="time">The point in time to get samples for</param>
         /// <returns>Hit samples</returns>
-        private IList<HitSampleInfo> getSamplesAtTime(IEnumerable<OsuHitObject> hitObjects, double time)
+        private IList<HitSampleInfo>? getSamplesAtTime(IEnumerable<OsuHitObject> hitObjects, double time)
         {
             // Get a hit object that
             //   either has StartTime equal to the target time