diff --git a/X10D.Tests/X10D.Tests.csproj b/X10D.Tests/X10D.Tests.csproj
index bdba516..07e4efe 100644
--- a/X10D.Tests/X10D.Tests.csproj
+++ b/X10D.Tests/X10D.Tests.csproj
@@ -16,14 +16,6 @@
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diff --git a/X10D.Unity/X10D.Unity.csproj b/X10D.Unity/X10D.Unity.csproj
index 8b4ce74..1f9d5f6 100644
--- a/X10D.Unity/X10D.Unity.csproj
+++ b/X10D.Unity/X10D.Unity.csproj
@@ -14,7 +14,6 @@
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         <PackageTags>dotnet extension-methods unity</PackageTags>
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-        <CodeAnalysisRuleSet>..\X10D.ruleset</CodeAnalysisRuleSet>
         <CodeAnalysisTreatWarningsAsErrors>true</CodeAnalysisTreatWarningsAsErrors>
         <PackageVersion>2.6.0</PackageVersion>
         <AssemblyVersion>2.6.0</AssemblyVersion>
@@ -37,14 +36,6 @@
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diff --git a/X10D/X10D.csproj b/X10D/X10D.csproj
index fd7ada6..4f5697a 100644
--- a/X10D/X10D.csproj
+++ b/X10D/X10D.csproj
@@ -14,7 +14,6 @@
         <PackageIconUrl />
         <PackageTags>dotnet extension-methods</PackageTags>
         <Version>2.6.0</Version>
-        <CodeAnalysisRuleSet>..\X10D.ruleset</CodeAnalysisRuleSet>
         <CodeAnalysisTreatWarningsAsErrors>true</CodeAnalysisTreatWarningsAsErrors>
         <AssemblyVersion>2.6.0</AssemblyVersion>
         <FileVersion>2.6.0</FileVersion>
@@ -38,14 +37,6 @@
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