diff --git a/src/RandomExtensions/Collections/IWeightedCollection.cs b/src/RandomExtensions/Collections/IWeightedCollection.cs
index 229f572..3e34a24 100644
--- a/src/RandomExtensions/Collections/IWeightedCollection.cs
+++ b/src/RandomExtensions/Collections/IWeightedCollection.cs
@@ -2,6 +2,6 @@ namespace RandomExtensions.Collections;
 
 public interface IWeightedCollection<T> : IReadOnlyCollection<WeightedValue<T>>
 {
-    T GetItem<TRandom>(TRandom random) where TRandom : IRandom;
-    void GetItems<TRandom>(TRandom random, Span<T> destination) where TRandom : IRandom;
+    T GetItem(IRandom random);
+    void GetItems(IRandom random, Span<T> destination);
 }
\ No newline at end of file
diff --git a/src/RandomExtensions/Collections/WeightedList.cs b/src/RandomExtensions/Collections/WeightedList.cs
index b9b6c88..a4c5116 100644
--- a/src/RandomExtensions/Collections/WeightedList.cs
+++ b/src/RandomExtensions/Collections/WeightedList.cs
@@ -124,8 +124,7 @@ public Enumerator GetEnumerator()
         return new Enumerator(this);
     }
 
-    public T GetItem<TRandom>(TRandom random)
-        where TRandom : IRandom
+    public T GetItem(IRandom random)
     {
         var r = random.NextDouble() * totalWeight;
         var current = 0.0;
@@ -142,8 +141,7 @@ public T GetItem<TRandom>(TRandom random)
         return default!;
     }
 
-    public void GetItems<TRandom>(TRandom random, Span<T> destination)
-        where TRandom : IRandom
+    public void GetItems(IRandom random, Span<T> destination)
     {
         for (int i = 0; i < destination.Length; i++)
         {