diff --git a/tests/FrigateRelay.Host.Tests/FrigateRelay.Host.Tests.csproj b/tests/FrigateRelay.Host.Tests/FrigateRelay.Host.Tests.csproj
index 33f5e62..924730e 100644
--- a/tests/FrigateRelay.Host.Tests/FrigateRelay.Host.Tests.csproj
+++ b/tests/FrigateRelay.Host.Tests/FrigateRelay.Host.Tests.csproj
@@ -21,7 +21,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="10.0.8" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.8" />
     <!-- WireMock.Net: HTTP stub servers for end-to-end snapshot resolution test. -->
-    <PackageReference Include="WireMock.Net" Version="2.5.0" />
+    <PackageReference Include="WireMock.Net" Version="2.9.0" />
     <!-- OpenTelemetry in-memory exporter — test-only, never in src/. Per PLAN-3.1 Task 1. -->
     <PackageReference Include="OpenTelemetry.Exporter.InMemory" Version="1.15.3" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.8" />