diff --git a/src/SMAPI.ModBuildConfig.Analyzer/AnalyzerUtilities.cs b/src/SMAPI.ModBuildConfig.Analyzer/AnalyzerUtilities.cs
index 1cc37b38..2e34cf71 100644
--- a/src/SMAPI.ModBuildConfig.Analyzer/AnalyzerUtilities.cs
+++ b/src/SMAPI.ModBuildConfig.Analyzer/AnalyzerUtilities.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System.Collections.Generic;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
@@ -42,8 +40,8 @@ namespace StardewModdingAPI.ModBuildConfig.Analyzer
 
             // invalid
             fromExpression = null;
-            fromType = default(TypeInfo);
-            toType = default(TypeInfo);
+            fromType = default;
+            toType = default;
             return false;
         }
 
@@ -76,7 +74,7 @@ namespace StardewModdingAPI.ModBuildConfig.Analyzer
 
             // invalid
             declaringType = null;
-            memberType = default(TypeInfo);
+            memberType = default;
             memberName = null;
             return false;
         }
diff --git a/src/SMAPI.ModBuildConfig.Analyzer/NetFieldAnalyzer.cs b/src/SMAPI.ModBuildConfig.Analyzer/NetFieldAnalyzer.cs
index cb2856da..553aae99 100644
--- a/src/SMAPI.ModBuildConfig.Analyzer/NetFieldAnalyzer.cs
+++ b/src/SMAPI.ModBuildConfig.Analyzer/NetFieldAnalyzer.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
diff --git a/src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs b/src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs
index 158d7243..ba089513 100644
--- a/src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs
+++ b/src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
diff --git a/src/SMAPI.ModBuildConfig/DeployModTask.cs b/src/SMAPI.ModBuildConfig/DeployModTask.cs
index 43fac9d5..c7026ee1 100644
--- a/src/SMAPI.ModBuildConfig/DeployModTask.cs
+++ b/src/SMAPI.ModBuildConfig/DeployModTask.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.IO;
diff --git a/src/SMAPI.ModBuildConfig/Framework/ModFileManager.cs b/src/SMAPI.ModBuildConfig/Framework/ModFileManager.cs
index ad2c0de3..80955f67 100644
--- a/src/SMAPI.ModBuildConfig/Framework/ModFileManager.cs
+++ b/src/SMAPI.ModBuildConfig/Framework/ModFileManager.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.IO;
diff --git a/src/SMAPI.ModBuildConfig/Framework/UserErrorException.cs b/src/SMAPI.ModBuildConfig/Framework/UserErrorException.cs
index 588118ef..64e31c29 100644
--- a/src/SMAPI.ModBuildConfig/Framework/UserErrorException.cs
+++ b/src/SMAPI.ModBuildConfig/Framework/UserErrorException.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 
 namespace StardewModdingAPI.ModBuildConfig.Framework