diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
index 2f2cb78..a2a1303 100644
--- a/.config/dotnet-tools.json
+++ b/.config/dotnet-tools.json
@@ -3,10 +3,10 @@
   "isRoot": true,
   "tools": {
     "fantomas": {
-      "version": "5.2.0-alpha-008",
+      "version": "6.3.16",
       "commands": [
         "fantomas"
       ]
     }
   }
-}
+}
\ No newline at end of file
diff --git a/.editorconfig b/.editorconfig
index 032150c..e207c42 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -23,7 +23,7 @@ fsharp_space_before_class_constructor=true
 fsharp_space_before_member=true
 fsharp_space_before_colon=true
 fsharp_space_before_semicolon=true
-fsharp_multiline_block_brackets_on_same_column=true
+fsharp_multiline_bracket_style=aligned
 fsharp_newline_between_type_definition_and_members=true
 fsharp_align_function_signature_to_indentation=true
 fsharp_alternative_long_member_definitions=true
diff --git a/.fantomasignore b/.fantomasignore
new file mode 100644
index 0000000..9b42106
--- /dev/null
+++ b/.fantomasignore
@@ -0,0 +1 @@
+.direnv/
diff --git a/AdventOfCode2022.App/Assembly.fs b/AdventOfCode2022.App/Assembly.fs
index 305c1e9..cd5758a 100644
--- a/AdventOfCode2022.App/Assembly.fs
+++ b/AdventOfCode2022.App/Assembly.fs
@@ -5,9 +5,7 @@ open System.Reflection
 
 [<RequireQualifiedAccess>]
 module Assembly =
-    type private Dummy =
-        class
-        end
+    type private Dummy = class end
 
     let readResource (name : string) : string =
         let asm = Assembly.GetAssembly typeof<Dummy>
diff --git a/AdventOfCode2022.App/Program.fs b/AdventOfCode2022.App/Program.fs
index d46ab71..44c5f3c 100644
--- a/AdventOfCode2022.App/Program.fs
+++ b/AdventOfCode2022.App/Program.fs
@@ -107,9 +107,7 @@ module Program =
         match args with
         | [| "bench" |] ->
             let config =
-                ManualConfig
-                    .Create(DefaultConfig.Instance)
-                    .WithOptions ConfigOptions.DisableOptimizationsValidator
+                ManualConfig.Create(DefaultConfig.Instance).WithOptions ConfigOptions.DisableOptimizationsValidator
 
             let _summary = BenchmarkRunner.Run<Benchmarks.Benchmark1To5> config
             let _summary = BenchmarkRunner.Run<Benchmarks.Benchmark6To10> config
diff --git a/AdventOfCode2022.Test/Assembly.fs b/AdventOfCode2022.Test/Assembly.fs
index d3c738a..acc787b 100644
--- a/AdventOfCode2022.Test/Assembly.fs
+++ b/AdventOfCode2022.Test/Assembly.fs
@@ -6,9 +6,7 @@ open System.Reflection
 [<RequireQualifiedAccess>]
 module Assembly =
 
-    type private Dummy =
-        class
-        end
+    type private Dummy = class end
 
     let readResource (name : string) : string =
         let asm = Assembly.GetAssembly typeof<Dummy>
diff --git a/nix/deps.nix b/nix/deps.nix
index 929d0bb..5848144 100644
--- a/nix/deps.nix
+++ b/nix/deps.nix
@@ -23,8 +23,8 @@
   })
   (fetchNuGet {
     pname = "fantomas";
-    version = "5.2.0-alpha-008";
-    hash = "sha256-1egphbWXTjs2I5aFaWibFDKgu3llP1o32o1X5vab6v4=";
+    version = "6.3.16";
+    hash = "sha256-4tRdYf+/Q1iedx+DDuIKVGlIWQdr6erM51VdKzZkhCs=";
   })
   (fetchNuGet {
     pname = "FSharp.Collections.ParallelSeq";