diff --git a/ShortGuid.Tests/ShortGuid.Tests.csproj b/ShortGuid.Tests/ShortGuid.Tests.csproj
index 0a5cfa0..ce13b7c 100644
--- a/ShortGuid.Tests/ShortGuid.Tests.csproj
+++ b/ShortGuid.Tests/ShortGuid.Tests.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="MSTest.TestAdapter" Version="2.0.0" />
     <PackageReference Include="MSTest.TestFramework" Version="2.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageReference Include="System.Runtime.Caching" Version="4.5.0" />
+    <PackageReference Include="System.Runtime.Caching" Version="6.0.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ShortGuid\ShortGuid.csproj" />
diff --git a/ShortGuid/ShortGuid.csproj b/ShortGuid/ShortGuid.csproj
index ca17f77..f60bc4a 100644
--- a/ShortGuid/ShortGuid.csproj
+++ b/ShortGuid/ShortGuid.csproj
@@ -14,7 +14,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageReference Include="System.Runtime.Caching" Version="4.5.0" />
+    <PackageReference Include="System.Runtime.Caching" Version="6.0.0" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Properties\" />