diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
index 2823c12c..9e89cf8b 100644
--- a/.config/dotnet-tools.json
+++ b/.config/dotnet-tools.json
@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "fantomas": {
-      "version": "6.0.4",
+      "version": "6.2.0",
       "commands": [
         "fantomas"
       ]
diff --git a/src/FSharp.Control.TaskSeq.SmokeTests/FSharp.Control.TaskSeq.SmokeTests.fsproj b/src/FSharp.Control.TaskSeq.SmokeTests/FSharp.Control.TaskSeq.SmokeTests.fsproj
index 75cc9dd0..75c962ec 100644
--- a/src/FSharp.Control.TaskSeq.SmokeTests/FSharp.Control.TaskSeq.SmokeTests.fsproj
+++ b/src/FSharp.Control.TaskSeq.SmokeTests/FSharp.Control.TaskSeq.SmokeTests.fsproj
@@ -13,11 +13,13 @@
   </ItemGroup>
 
   <ItemGroup>
+    <!-- our smoketests use the highest RTM (non-alpha) FSharp.Core, contrary to the base test project, which uses the lowest possible denominator -->
+    <PackageReference Update="FSharp.Core" Version="7.0.401" />
     <PackageReference Include="FSharp.Control.TaskSeq" Version="0.4.0-alpha.1" />
-    <PackageReference Include="FsUnit.xUnit" Version="5.1.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.1" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+    <PackageReference Include="FsUnit.xUnit" Version="5.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+    <PackageReference Include="xunit" Version="2.5.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
diff --git a/src/FSharp.Control.TaskSeq.Test/FSharp.Control.TaskSeq.Test.fsproj b/src/FSharp.Control.TaskSeq.Test/FSharp.Control.TaskSeq.Test.fsproj
index 1a3f1a51..b6d84d11 100644
--- a/src/FSharp.Control.TaskSeq.Test/FSharp.Control.TaskSeq.Test.fsproj
+++ b/src/FSharp.Control.TaskSeq.Test/FSharp.Control.TaskSeq.Test.fsproj
@@ -56,10 +56,10 @@
     <!-- we use 6.0.3 here and not 6.0.2 because TaskResult lib requires it-->
     <PackageReference Update="FSharp.Core" Version="6.0.3" />
     <PackageReference Include="FsToolkit.ErrorHandling.TaskResult" Version="3.2.0" />
-    <PackageReference Include="FsUnit.xUnit" Version="5.1.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.1" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+    <PackageReference Include="FsUnit.xUnit" Version="5.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+    <PackageReference Include="xunit" Version="2.5.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
diff --git a/src/FSharp.Control.TaskSeq.Test/Nunit.Extensions.fs b/src/FSharp.Control.TaskSeq.Test/Nunit.Extensions.fs
index c32a1cfd..5fc1ccf4 100644
--- a/src/FSharp.Control.TaskSeq.Test/Nunit.Extensions.fs
+++ b/src/FSharp.Control.TaskSeq.Test/Nunit.Extensions.fs
@@ -22,7 +22,11 @@ module ExtraCustomMatchers =
     let private baseResultTypeTest value =
         match value with
         | null ->
-            MatchException("Result type", "<null>", "Value <null> or None is never Result.Ok or Result.Error")
+            EqualException.ForMismatchedValues(
+                "Result type",
+                "<null>",
+                "Value <null> or None is never Result.Ok or Result.Error"
+            )
             |> raise
 
         | _ ->
@@ -31,7 +35,7 @@ module ExtraCustomMatchers =
             if ty.FullName.StartsWith "Microsoft.FSharp.Core.FSharpResult" then
                 FSharpValue.GetUnionFields(value, ty) |> fst
             else
-                MatchException("Result type", ty.Name, "Type must be Result<_, _>")
+                EqualException.ForMismatchedValues("Result type", ty.Name, "Type must be Result<_, _>")
                 |> raise
 
     let private baseOptionTypeTest value =
@@ -49,9 +53,13 @@ module ExtraCustomMatchers =
                 | "None" -> None
                 | _ ->
                     raise
-                    <| MatchException("Option type", ty.Name, "Unexpected field name for F# option type")
+                    <| EqualException.ForMismatchedValues(
+                        "Option type",
+                        ty.Name,
+                        "Unexpected field name for F# option type"
+                    )
             else
-                MatchException("Option type", ty.Name, "Type must be Option<_>")
+                EqualException.ForMismatchedValues("Option type", ty.Name, "Type must be Option<_>")
                 |> raise