diff --git a/tests/SecureFlow.Tests/SecureFlow.Tests.csproj b/tests/SecureFlow.Tests/SecureFlow.Tests.csproj
index 6df444e..ef076de 100644
--- a/tests/SecureFlow.Tests/SecureFlow.Tests.csproj
+++ b/tests/SecureFlow.Tests/SecureFlow.Tests.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.4" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" />
   </ItemGroup>
diff --git a/tests/SecureFlow.Tests/packages.lock.json b/tests/SecureFlow.Tests/packages.lock.json
index d1e0cbe..1efd455 100644
--- a/tests/SecureFlow.Tests/packages.lock.json
+++ b/tests/SecureFlow.Tests/packages.lock.json
@@ -10,12 +10,12 @@
       },
       "Microsoft.NET.Test.Sdk": {
         "type": "Direct",
-        "requested": "[17.14.1, )",
-        "resolved": "17.14.1",
-        "contentHash": "HJKqKOE+vshXra2aEHpi2TlxYX7Z9VFYkr+E5rwEvHC8eIXiyO+K9kNm8vmNom3e2rA56WqxU+/N9NJlLGXsJQ==",
+        "requested": "[18.9.0, )",
+        "resolved": "18.9.0",
+        "contentHash": "xIzVXa/VpKXqDWzyC/5Hw8JbFY5u9k3Jc53CpcjBiOXvkQGio484LD9FNwOiGUSMDcYL3Rcw9sNgGi5WrswlPQ==",
         "dependencies": {
-          "Microsoft.CodeCoverage": "17.14.1",
-          "Microsoft.TestPlatform.TestHost": "17.14.1"
+          "Microsoft.CodeCoverage": "18.9.0",
+          "Microsoft.TestPlatform.TestHost": "18.9.0"
         }
       },
       "xunit": {
@@ -59,8 +59,8 @@
       },
       "Microsoft.CodeCoverage": {
         "type": "Transitive",
-        "resolved": "17.14.1",
-        "contentHash": "pmTrhfFIoplzFVbhVwUquT+77CbGH+h4/3mBpdmIlYtBi9nAB+kKI6dN3A/nV4DFi3wLLx/BlHIPK+MkbQ6Tpg=="
+        "resolved": "18.9.0",
+        "contentHash": "MtegCIKGuG0r/LCdIjoR1HgzCGIUBhR3aNdbtQpts5vMXQuqBDZ2Jsd2uFKoHFM2XrQV6ZrDf3F5oLi3SLTp8w=="
       },
       "Microsoft.EntityFrameworkCore": {
         "type": "Transitive",
@@ -189,23 +189,17 @@
       },
       "Microsoft.TestPlatform.ObjectModel": {
         "type": "Transitive",
-        "resolved": "17.14.1",
-        "contentHash": "xTP1W6Mi6SWmuxd3a+jj9G9UoC850WGwZUps1Wah9r1ZxgXhdJfj1QqDLJkFjHDCvN42qDL2Ps5KjQYWUU0zcQ=="
+        "resolved": "18.9.0",
+        "contentHash": "Fz/qXC52VXXopzHj7v2reCKcCqSxkTDCkEDfkNAH0vni/7qK/KLMiEYtRmnUanxO2F2g2zZZ60qCpxF0AF7URA=="
       },
       "Microsoft.TestPlatform.TestHost": {
         "type": "Transitive",
-        "resolved": "17.14.1",
-        "contentHash": "d78LPzGKkJwsJXAQwsbJJ7LE7D1wB+rAyhHHAaODF+RDSQ0NgMjDFkSA1Djw18VrxO76GlKAjRUhl+H8NL8Z+Q==",
+        "resolved": "18.9.0",
+        "contentHash": "Oq+Pma/J86aZL72t71bcESvDszDsTjUfl6PIsuDdPoKTHZfNMhKamCfLD5fKx51W/u0KozXtJo2/3fnt0sgPxg==",
         "dependencies": {
-          "Microsoft.TestPlatform.ObjectModel": "17.14.1",
-          "Newtonsoft.Json": "13.0.3"
+          "Microsoft.TestPlatform.ObjectModel": "18.9.0"
         }
       },
-      "Newtonsoft.Json": {
-        "type": "Transitive",
-        "resolved": "13.0.3",
-        "contentHash": "HrC5BXdl00IP9zeV+0Z848QWPAoCr9P3bDEZguI+gkLcBKAOxix/tLEAAHC+UvDNPv4a2d18lOReHMOagPa+zQ=="
-      },
       "Npgsql": {
         "type": "Transitive",
         "resolved": "10.0.0",