diff --git a/Tests/ActivityPub.Types.Tests/Integration/Deserialization/DeserializationTests.cs b/Tests/ActivityPub.Types.Tests/Integration/Deserialization/DeserializationTests.cs
index b9819d6..5c4871a 100644
--- a/Tests/ActivityPub.Types.Tests/Integration/Deserialization/DeserializationTests.cs
+++ b/Tests/ActivityPub.Types.Tests/Integration/Deserialization/DeserializationTests.cs
@@ -12,7 +12,6 @@ public abstract class DeserializationTests<T>
     
     protected DeserializationTests()
     {
-        // TODO remove this once we support DI in tests
         var jsonTypeInfoCache = new JsonTypeInfoCache();
         var asTypeInfoCache = new ASTypeInfoCache(jsonTypeInfoCache);
         asTypeInfoCache.RegisterAllAssemblies();
diff --git a/Tests/ActivityPub.Types.Tests/Integration/Serialization/SerializationTests.cs b/Tests/ActivityPub.Types.Tests/Integration/Serialization/SerializationTests.cs
index 133ecb6..ff4e2a0 100644
--- a/Tests/ActivityPub.Types.Tests/Integration/Serialization/SerializationTests.cs
+++ b/Tests/ActivityPub.Types.Tests/Integration/Serialization/SerializationTests.cs
@@ -12,7 +12,6 @@ public abstract class SerializationTests
     
     protected SerializationTests()
     {
-        // TODO remove this once we support DI in tests
         var jsonTypeInfoCache = new JsonTypeInfoCache();
         var asTypeInfoCache = new ASTypeInfoCache(jsonTypeInfoCache);
         asTypeInfoCache.RegisterAllAssemblies();
diff --git a/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyActorTests.cs b/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyActorTests.cs
index 66ec968..8c98db3 100644
--- a/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyActorTests.cs
+++ b/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyActorTests.cs
@@ -104,7 +104,6 @@ public void ShouldSetKeyFields()
 
     public CalckeyActorTests()
     {
-        // TODO remove this once we support DI in tests
         var jsonTypeInfoCache = new JsonTypeInfoCache();
         var asTypeInfoCache = new ASTypeInfoCache(jsonTypeInfoCache);
         asTypeInfoCache.RegisterAllAssemblies();
diff --git a/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxPageTests.cs b/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxPageTests.cs
index 43f8470..90123e8 100644
--- a/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxPageTests.cs
+++ b/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxPageTests.cs
@@ -262,7 +262,6 @@ public void ShouldSetKeyFields()
 
     public CalckeyOutboxPageTests()
     {
-        // TODO remove this once we support DI in tests
         var jsonTypeInfoCache = new JsonTypeInfoCache();
         var asTypeInfoCache = new ASTypeInfoCache(jsonTypeInfoCache);
         asTypeInfoCache.RegisterAllAssemblies();
diff --git a/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxTests.cs b/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxTests.cs
index 326ef98..7b8af7e 100644
--- a/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxTests.cs
+++ b/Tests/ActivityPub.Types.Tests/Smoke/Samples/CalckeyOutboxTests.cs
@@ -71,7 +71,6 @@ public void ShouldSetKeyFields()
 
     public CalckeyOutboxTests()
     {
-        // TODO remove this once we support DI in tests
         var jsonTypeInfoCache = new JsonTypeInfoCache();
         var asTypeInfoCache = new ASTypeInfoCache(jsonTypeInfoCache);
         asTypeInfoCache.RegisterAllAssemblies();