diff --git a/SectigoCertificateManager.Tests/SectigoCertificateManager.Tests.csproj b/SectigoCertificateManager.Tests/SectigoCertificateManager.Tests.csproj
index d9b9bea..81b70b9 100644
--- a/SectigoCertificateManager.Tests/SectigoCertificateManager.Tests.csproj
+++ b/SectigoCertificateManager.Tests/SectigoCertificateManager.Tests.csproj
@@ -13,7 +13,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" />
-    <PackageReference Include="WireMock.Net" Version="1.12.0" />
+    <PackageReference Include="WireMock.Net" Version="1.21.0" />
     <PackageReference Include="System.Formats.Asn1" Version="9.0.9" />
   </ItemGroup>