diff --git a/Directory.Packages.props b/Directory.Packages.props
index ab4a731..b5d64a3 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -42,7 +42,7 @@
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="10.0.9" />
     <!-- Test project only — FakeTimeProvider for deterministic daemon polling/backpressure tests
          (task 5.2). Never referenced by src/; src/ uses the BCL TimeProvider (net10). -->
-    <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.7.0" />
+    <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.9.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/tests/Acta.Tests/packages.lock.json b/tests/Acta.Tests/packages.lock.json
index a3520f7..c1733c9 100644
--- a/tests/Acta.Tests/packages.lock.json
+++ b/tests/Acta.Tests/packages.lock.json
@@ -25,9 +25,9 @@
       },
       "Microsoft.Extensions.TimeProvider.Testing": {
         "type": "Direct",
-        "requested": "[10.7.0, )",
-        "resolved": "10.7.0",
-        "contentHash": "THd3CJ9e/ftm/3+Z69E51MQy4n46so4Zs/vUevMCYR5tjZsP+INqD4npXARVQwB2nnG+eQ8SI6ERLe/tn6gwSA=="
+        "requested": "[10.9.0, )",
+        "resolved": "10.9.0",
+        "contentHash": "0If8xc915BgRpYmKB9tOOOprvHMt8Tue6kiD8ARgVf8Ok6PNUxkJScKT7QUp7+RllR4RN2DNACgaxioy9BJxeQ=="
       },
       "Microsoft.NET.Test.Sdk": {
         "type": "Direct",