diff --git a/Directory.Packages.props b/Directory.Packages.props
index 731aa87..ebf419e 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -16,7 +16,7 @@
     <PackageVersion Include="Shouldly" Version="4.3.0" />
     <PackageVersion Include="SonarAnalyzer.CSharp" Version="10.20.0.135146" />
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
-    <PackageVersion Include="System.Collections.Immutable" Version="10.0.3" />
+    <PackageVersion Include="System.Collections.Immutable" Version="10.0.4" />
     <PackageVersion Include="Valuify" Version="1.7.4" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />