diff --git a/Directory.Packages.props b/Directory.Packages.props
index 241f9d2a..8c223a25 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -10,7 +10,7 @@
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="2.2.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="10.0.0" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.4.1" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageVersion Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <PackageVersion Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.4.33" />
diff --git a/tests/Temporalio.Tests/packages.lock.json b/tests/Temporalio.Tests/packages.lock.json
index 18152ed1..3d612f76 100644
--- a/tests/Temporalio.Tests/packages.lock.json
+++ b/tests/Temporalio.Tests/packages.lock.json
@@ -58,12 +58,12 @@
       },
       "Microsoft.NET.Test.Sdk": {
         "type": "Direct",
-        "requested": "[17.4.1, )",
-        "resolved": "17.4.1",
-        "contentHash": "kJ5/v2ad+VEg1fL8UH18nD71Eu+Fq6dM4RKBVqlV2MLSEK/AW4LUkqlk7m7G+BrxEDJVwPjxHam17nldxV80Ow==",
+        "requested": "[18.5.1, )",
+        "resolved": "18.5.1",
+        "contentHash": "SfqVaLiIqAbRWuPg5BP4QFwBIirQj/YIL8Dhxl6zntBKbXp0cQykoV480SmwG+yRMiWptxEI6NbHQuGSZ8b97w==",
         "dependencies": {
-          "Microsoft.CodeCoverage": "17.4.1",
-          "Microsoft.TestPlatform.TestHost": "17.4.1"
+          "Microsoft.CodeCoverage": "18.5.1",
+          "Microsoft.TestPlatform.TestHost": "18.5.1"
         }
       },
       "Microsoft.VisualStudio.Threading.Analyzers": {
@@ -128,8 +128,8 @@
       },
       "Microsoft.CodeCoverage": {
         "type": "Transitive",
-        "resolved": "17.4.1",
-        "contentHash": "T21KxaiFawbrrjm0uXjxAStXaBm5P9H6Nnf8BUtBTvIpd8q57lrChVBCY2dnazmSu9/kuX4z5+kAOT78Dod7vA=="
+        "resolved": "18.5.1",
+        "contentHash": "vMFDR1ZjqzzgKmM0zrPie7Gv9Y+ZppjODB5Quzu9Eq0TlIusUfUCYFPEawO91zQuqwzvdFbJSU7WHNtjStffJQ=="
       },
       "Microsoft.Extensions.Configuration": {
         "type": "Transitive",
@@ -358,19 +358,16 @@
       },
       "Microsoft.TestPlatform.ObjectModel": {
         "type": "Transitive",
-        "resolved": "17.4.1",
-        "contentHash": "v2CwoejusooZa/DZYt7UXo+CJOvwAmqg6ZyFJeIBu+DCRDqpEtf7WYhZ/AWii0EKzANPPLU9+m148aipYQkTuA==",
-        "dependencies": {
-          "NuGet.Frameworks": "5.11.0"
-        }
+        "resolved": "18.5.1",
+        "contentHash": "KNZd+M0S0rz5eNAln0pbZX+A/RbokYZCbGKx4fN4CkhtWhkz6nSJDO+9LGYjRE4d0WPVriJ2JnVubkjt3+PpMg=="
       },
       "Microsoft.TestPlatform.TestHost": {
         "type": "Transitive",
-        "resolved": "17.4.1",
-        "contentHash": "K7QXM4P4qrDKdPs/VSEKXR08QEru7daAK8vlIbhwENM3peXJwb9QgrAbtbYyyfVnX+F1m+1hntTH6aRX+h/f8g==",
+        "resolved": "18.5.1",
+        "contentHash": "RM+3JNHEoHOCFXzVntUcIiYxzPjzBN0N8wto6HYXi76YyBTZ/3CeRL8U+Pk5zx3AUrOmHxDvKJwGUCdElU9bJg==",
         "dependencies": {
-          "Microsoft.TestPlatform.ObjectModel": "17.4.1",
-          "Newtonsoft.Json": "13.0.1"
+          "Microsoft.TestPlatform.ObjectModel": "18.5.1",
+          "Newtonsoft.Json": "13.0.3"
         }
       },
       "NETStandard.Library": {
@@ -383,13 +380,8 @@
       },
       "Newtonsoft.Json": {
         "type": "Transitive",
-        "resolved": "13.0.1",
-        "contentHash": "ppPFpBcvxdsfUonNcvITKqLl3bqxWbDCZIzDWHzjpdAHRFfZe0Dw9HmA0+za13IdyrgJwpkDTDA9fHaxOrt20A=="
-      },
-      "NuGet.Frameworks": {
-        "type": "Transitive",
-        "resolved": "5.11.0",
-        "contentHash": "eaiXkUjC4NPcquGWzAGMXjuxvLwc6XGKMptSyOGQeT0X70BUZObuybJFZLA0OfTdueLd3US23NBPTBb6iF3V1Q=="
+        "resolved": "13.0.3",
+        "contentHash": "HrC5BXdl00IP9zeV+0Z848QWPAoCr9P3bDEZguI+gkLcBKAOxix/tLEAAHC+UvDNPv4a2d18lOReHMOagPa+zQ=="
       },
       "OpenTelemetry": {
         "type": "Transitive",