diff --git a/flake.nix b/flake.nix
index a2451a1..e750d89 100644
--- a/flake.nix
+++ b/flake.nix
@@ -44,8 +44,8 @@
         };
     in {
       packages = {
-        fantomas = dotnetTool null "fantomas" (builtins.fromJSON (builtins.readFile ./.config/dotnet-tools.json)).tools.fantomas.version "sha256-Jmo7s8JMdQ8SxvNvPnryfE7n24mIgKi5cbgNwcQw3yU=";
-        fsharp-analyzers = dotnetTool "FSharp.Analyzers.Cli" "fsharp-analyzers" (builtins.fromJSON (builtins.readFile ./.config/dotnet-tools.json)).tools.fsharp-analyzers.version "sha256-CWMW06ncSs8QkQvxNPNrgn3TAzMU6qCT1k2A3pnGrYQ=";
+        fantomas = dotnetTool null "fantomas" (builtins.fromJSON (builtins.readFile ./.config/dotnet-tools.json)).tools.fantomas.version (builtins.head (builtins.filter (elem: elem.pname == "fantomas") ((import ./nix/deps.nix) {fetchNuGet = x: x;}))).sha256;
+        fsharp-analyzers = dotnetTool "FSharp.Analyzers.Cli" "fsharp-analyzers" (builtins.fromJSON (builtins.readFile ./.config/dotnet-tools.json)).tools.fsharp-analyzers.version (builtins.head (builtins.filter (elem: elem.pname == "fsharp-analyzers") ((import ./nix/deps.nix) {fetchNuGet = x: x;}))).sha256;
         fetchDeps = let
           flags = [];
           runtimeIds = ["win-x64"] ++ map (system: pkgs.dotnetCorePackages.systemToDotnetRid system) dotnet-sdk.meta.platforms;
diff --git a/nix/deps.nix b/nix/deps.nix
index 8dd9d33..4acaa01 100644
--- a/nix/deps.nix
+++ b/nix/deps.nix
@@ -338,8 +338,8 @@
   })
   (fetchNuGet {
     pname = "NUnit.Analyzers";
-    version = "3.10.0";
-    sha256 = "1zc6s7lmzw5avrnbbjwyzla9d6bafbpxgv62m4zlqxv14p85md0d";
+    version = "4.0.0";
+    sha256 = "01a2a7hx1dwkmdyy4dw7ipsj77dlbfidkzscwfmgyfdf197agd2d";
   })
   (fetchNuGet {
     pname = "NUnit3TestAdapter";