diff --git a/backends/dotnet/tests/StackverseBackend.Tests/StackverseBackend.Tests.csproj b/backends/dotnet/tests/StackverseBackend.Tests/StackverseBackend.Tests.csproj
index d32f1dca..760b40e5 100644
--- a/backends/dotnet/tests/StackverseBackend.Tests/StackverseBackend.Tests.csproj
+++ b/backends/dotnet/tests/StackverseBackend.Tests/StackverseBackend.Tests.csproj
@@ -13,7 +13,7 @@
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     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.11" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="10.0.11" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.analyzers" Version="1.27.0">
diff --git a/backends/dotnet/tests/StackverseBackend.Tests/packages.lock.json b/backends/dotnet/tests/StackverseBackend.Tests/packages.lock.json
index 9eef9991..7a6797a7 100644
--- a/backends/dotnet/tests/StackverseBackend.Tests/packages.lock.json
+++ b/backends/dotnet/tests/StackverseBackend.Tests/packages.lock.json
@@ -35,12 +35,12 @@
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-        "resolved": "18.8.1",
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+        "requested": "[18.9.0, )",
+        "resolved": "18.9.0",
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         "dependencies": {
-          "Microsoft.CodeCoverage": "18.8.1",
-          "Microsoft.TestPlatform.TestHost": "18.8.1"
+          "Microsoft.CodeCoverage": "18.9.0",
+          "Microsoft.TestPlatform.TestHost": "18.9.0"
         }
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       "Newtonsoft.Json": {
@@ -92,8 +92,8 @@
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       "Microsoft.CodeCoverage": {
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-        "contentHash": "Eclse/ZZjr4lmWzZFNN9h/OluhKL+SK/QbUyKUewgX139aGeyMEO/DkMPwuFs2MixvanTnz6891rF8UHDg+W4Q=="
+        "resolved": "18.9.0",
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       },
       "Microsoft.EntityFrameworkCore": {
         "type": "Transitive",
@@ -176,15 +176,15 @@
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-        "contentHash": "qLbktNB1+b1XZLNJBTzaWVVJAd6PEzD7cgD406geMb6PcFZhp3EDNa1tctWx1+mtMU6MP/6ozVvFPC9vs2a9rw=="
+        "resolved": "18.9.0",
+        "contentHash": "Fz/qXC52VXXopzHj7v2reCKcCqSxkTDCkEDfkNAH0vni/7qK/KLMiEYtRmnUanxO2F2g2zZZ60qCpxF0AF7URA=="
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       "Microsoft.TestPlatform.TestHost": {
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-        "contentHash": "FaQHPDTUOcE+SFTjssNPfrub2lT9Zyon4J2W/KLHt/efLJACb1TCeWXyOgh0D/4Q1e4n+S3E6mOKud+9nLZlEA==",
+        "resolved": "18.9.0",
+        "contentHash": "Oq+Pma/J86aZL72t71bcESvDszDsTjUfl6PIsuDdPoKTHZfNMhKamCfLD5fKx51W/u0KozXtJo2/3fnt0sgPxg==",
         "dependencies": {
-          "Microsoft.TestPlatform.ObjectModel": "18.8.1"
+          "Microsoft.TestPlatform.ObjectModel": "18.9.0"
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       "Npgsql": {
diff --git a/gateways/yarp/tests/StackverseGateway.Tests/StackverseGateway.Tests.csproj b/gateways/yarp/tests/StackverseGateway.Tests/StackverseGateway.Tests.csproj
index 44d16f95..dfdd8cde 100644
--- a/gateways/yarp/tests/StackverseGateway.Tests/StackverseGateway.Tests.csproj
+++ b/gateways/yarp/tests/StackverseGateway.Tests/StackverseGateway.Tests.csproj
@@ -12,12 +12,12 @@
     <PackageReference Include="coverlet.collector" Version="10.0.1" />
     <PackageReference Include="JunitXml.TestLogger" Version="8.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.11" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     <!-- Security floor: Testcontainers 4.13.0 transitively pulls SSH.NET 2025.1.0, affected by GHSA-q939-rpr3-3284. -->
     <PackageReference Include="SSH.NET" Version="2026.0.0" />
-    <PackageReference Include="Testcontainers.Keycloak" Version="4.13.0" />
-    <PackageReference Include="Testcontainers.Redis" Version="4.13.0" />
+    <PackageReference Include="Testcontainers.Keycloak" Version="4.14.0" />
+    <PackageReference Include="Testcontainers.Redis" Version="4.14.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.analyzers" Version="1.27.0">
       <PrivateAssets>all</PrivateAssets>
diff --git a/gateways/yarp/tests/StackverseGateway.Tests/packages.lock.json b/gateways/yarp/tests/StackverseGateway.Tests/packages.lock.json
index 7fa9eb26..935579d0 100644
--- a/gateways/yarp/tests/StackverseGateway.Tests/packages.lock.json
+++ b/gateways/yarp/tests/StackverseGateway.Tests/packages.lock.json
@@ -27,12 +27,12 @@
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+        "requested": "[18.9.0, )",
+        "resolved": "18.9.0",
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-          "Microsoft.CodeCoverage": "18.8.1",
-          "Microsoft.TestPlatform.TestHost": "18.8.1"
+          "Microsoft.CodeCoverage": "18.9.0",
+          "Microsoft.TestPlatform.TestHost": "18.9.0"
         }
       },
       "Newtonsoft.Json": {
@@ -53,20 +53,20 @@
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       "Testcontainers.Keycloak": {
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-        "requested": "[4.13.0, )",
-        "resolved": "4.13.0",
-        "contentHash": "PF4FNJ4kSKU+ulBESQWEzHOI1TfK+lK+ZtyMLIChn90pcDdsQKdRtm4eqPntaTiqRy09A6viFjhShKRZvZyJeg==",
+        "requested": "[4.14.0, )",
+        "resolved": "4.14.0",
+        "contentHash": "HAjSP9qB51I0SYP/efrZKYYBMToI9WkIuO+JrRB6LW4S7lJZkKVcaEidge2hjDB+AnYm3+qN1zPUFPhXitPgSg==",
         "dependencies": {
-          "Testcontainers": "4.13.0"
+          "Testcontainers": "4.14.0"
         }
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       "Testcontainers.Redis": {
         "type": "Direct",
-        "requested": "[4.13.0, )",
-        "resolved": "4.13.0",
-        "contentHash": "OPnG9q83LYvgwGTAnCCsPEemRiJoxL+Mv3C6/lJnlpw+qCfAuiCWD4Hmtb/tUO0xbndzc7FecrhpEho0aldZBA==",
+        "requested": "[4.14.0, )",
+        "resolved": "4.14.0",
+        "contentHash": "PxqR44lftGtHxiIXtQtCsfQkjJmWnDuWk/Mz20p1pt9CUo+SRqpotGwG0EYgsOq9Qv5diZgMQp0Cyo2FzCqocg==",
         "dependencies": {
-          "Testcontainers": "4.13.0"
+          "Testcontainers": "4.14.0"
         }
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       "xunit": {
@@ -211,8 +211,8 @@
       },
       "Microsoft.CodeCoverage": {
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-        "contentHash": "Eclse/ZZjr4lmWzZFNN9h/OluhKL+SK/QbUyKUewgX139aGeyMEO/DkMPwuFs2MixvanTnz6891rF8UHDg+W4Q=="
+        "resolved": "18.9.0",
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@@ -567,15 +567,15 @@
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+        "resolved": "18.9.0",
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         "dependencies": {
-          "Microsoft.TestPlatform.ObjectModel": "18.8.1"
+          "Microsoft.TestPlatform.ObjectModel": "18.9.0"
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       "OpenTelemetry": {
@@ -692,13 +692,13 @@
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           "Docker.DotNet.Enhanced.X509": "4.3.3",
           "Microsoft.Extensions.Logging.Abstractions": "8.0.3",
-          "SSH.NET": "2025.1.0",
+          "SSH.NET": "2026.0.0",
           "SharpZipLib": "1.4.2"
         }
       },