diff --git a/flake.nix b/flake.nix
index 8627287468..cefc35808d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,18 +21,6 @@
     }:
     let
 
-      toml = pkgs: ((import ./nix/toml11.nix) { inherit pkgs; });
-      onedpl = pkgs: old: pkgs.onedpl;
-      # ((import ./nix/onedpl.nix) {
-      #   inherit (pkgs)
-      #     lib
-      #     stdenv
-      #     fetchFromGitHub
-      #     fetchpatch
-      #     cmake
-      #     ;
-      #   tbb = old.tbb_2021_11;
-      # });
       exe-name = gui: if gui then "dissolve-gui" else "dissolve";
       cmake-bool = x: if x then "ON" else "OFF";
       version = "1.9.0";
@@ -52,7 +40,7 @@
           jre
           pkg-config
           pugixml
-          (toml pkgs)
+          toml11
         ];
       gui_libs = system: pkgs: qt: [
         pkgs.glib
@@ -113,7 +101,7 @@
               ++ pkgs.lib.optionals checks (check_libs pkgs)
               ++ pkgs.lib.optionals threading [
                 old.tbb_2021_11
-                (onedpl pkgs old)
+                pkgs.onedpl
               ];
             nativeBuildInputs = pkgs.lib.optionals gui [ pkgs.wrapGAppsHook3 ];
 
@@ -186,7 +174,7 @@
             ++ (with pkgs; [
               llvmPackages_20.clang-tools
 
-              (onedpl pkgs old)
+              onedpl
 
               ccache
               ccls
diff --git a/nix/onedpl.nix b/nix/onedpl.nix
deleted file mode 100644
index e34d7ee5d0..0000000000
--- a/nix/onedpl.nix
+++ /dev/null
@@ -1,63 +0,0 @@
-{ lib, stdenv, fetchFromGitHub, fetchpatch, cmake, tbb }:
-
-stdenv.mkDerivation rec {
-  pname = "oneDPL";
-  version = "oneDPL-2022.0.0-release ";
-
-  outputs = [ "out" "dev" ];
-
-  src = fetchFromGitHub {
-    owner = "oneapi-src";
-    repo = "oneDPL";
-    rev = "240685db73e3169e66dbb625b4d5fa1ad06ec79b";
-    sha256 = "5E/EUJjhi6VQfYo3qdDHiETnXNEymsLR3hMSH5Gfa0M=";
-  };
-
-  nativeBuildInputs = [ cmake ];
-
-  buildInputs = [ tbb ];
-
-  # patches = [
-  #   # Fix musl build from https://github.com/oneapi-src/oneTBB/pull/899
-  #   (fetchpatch {
-  #     url = "https://patch-diff.githubusercontent.com/raw/oneapi-src/oneTBB/pull/899.patch";
-  #     hash = "sha256-kU6RRX+sde0NrQMKlNtW3jXav6J4QiVIUmD50asmBPU=";
-  #   })
-
-  #   # Fix/suppress warnings on gcc12.1 from https://github.com/oneapi-src/oneTBB/pull/866
-  #   (fetchpatch {
-  #     url = "https://patch-diff.githubusercontent.com/raw/oneapi-src/oneTBB/pull/866.patch";
-  #     hash = "sha256-e44Yv84Hfl5xoxWWTnLJLSGeNA1RBbah4/L43gPLS+c=";
-  #   })
-  # ];
-
-  # Fix build with modern gcc
-  # In member function 'void std::__atomic_base<_IntTp>::store(__int_type, std::memory_order) [with _ITp = bool]',
-  NIX_CFLAGS_COMPILE =
-    lib.optionals stdenv.cc.isGNU [ "-Wno-error=stringop-overflow" ] ++
-    # Workaround for gcc-12 ICE when using -O3
-    # https://gcc.gnu.org/PR108854
-    lib.optionals (stdenv.cc.isGNU && stdenv.isx86_32) [ "-O2" ];
-
-  # Disable failing test on musl
-  # test/conformance/conformance_resumable_tasks.cpp:37:24: error: ‘suspend’ is not a member of ‘tbb::v1::task’; did you mean ‘tbb::detail::r1::suspend’?
-  postPatch = lib.optionalString stdenv.hostPlatform.isMusl ''
-    substituteInPlace test/CMakeLists.txt \
-      --replace 'conformance_resumable_tasks' ""
-  '';
-
-  meta = with lib; {
-    description = "Intel Thread Building Blocks C++ Library";
-    homepage = "http://threadingbuildingblocks.org/";
-    license = licenses.asl20;
-    longDescription = ''
-      Intel Threading Building Blocks offers a rich and complete approach to
-      expressing parallelism in a C++ program. It is a library that helps you
-      take advantage of multi-core processor performance without having to be a
-      threading expert. Intel TBB is not just a threads-replacement library. It
-      represents a higher-level, task-based parallelism that abstracts platform
-      details and threading mechanisms for scalability and performance.
-    '';
-    platforms = platforms.unix;
-  };
-}
diff --git a/nix/toml11.nix b/nix/toml11.nix
deleted file mode 100644
index 2b9e259776..0000000000
--- a/nix/toml11.nix
+++ /dev/null
@@ -1,18 +0,0 @@
-{ pkgs }:
-
-pkgs.stdenv.mkDerivation rec {
-  name = "toml11";
-  version = "v4.4.0";
-  cmake = true;
-  buildInputs = [ pkgs.cmake ];
-  src = pkgs.fetchFromGitHub {
-    owner = "ToruNiina";
-    repo = "toml11";
-    rev = version;
-    sha256 = "sha256-sgWKYxNT22nw376ttGsTdg0AMzOwp8QH3E8mx0BZJTQ=";
-    fetchSubmodules = true;
-  };
-  cmakeFlags = [
-    "-DCMAKE_INSTALL_INCLUDEDIR=include/toml11"
-  ];
-}
diff --git a/src/base/serialiser.h b/src/base/serialiser.h
index bf981ec82c..02f338afb3 100644
--- a/src/base/serialiser.h
+++ b/src/base/serialiser.h
@@ -4,11 +4,7 @@
 #pragma once
 
 #include "templates/orderedMap.h"
-#include <toml11/toml.hpp>
-#include <toml11/toml11/error_info.hpp>
-#include <toml11/toml11/parser.hpp>
-#include <toml11/toml11/result.hpp>
-#include <toml11/toml11/source_location.hpp>
+#include <toml.hpp>
 #include <vector>
 
 struct wo_comment_config
diff --git a/src/nodes/forcefield.cpp b/src/nodes/forcefield.cpp
index 31b012ab15..10a51adda8 100644
--- a/src/nodes/forcefield.cpp
+++ b/src/nodes/forcefield.cpp
@@ -3,7 +3,6 @@
 
 #include "nodes/forcefield.h"
 #include "data/ff/library.h"
-#include <toml11/toml.hpp>
 
 ForcefieldNode::ForcefieldNode(Graph *parentGraph) : Node(parentGraph)
 {
diff --git a/tests/algorithms/orderedMap.cpp b/tests/algorithms/orderedMap.cpp
index 42b7b92bc3..66da73b579 100644
--- a/tests/algorithms/orderedMap.cpp
+++ b/tests/algorithms/orderedMap.cpp
@@ -4,7 +4,6 @@
 #include "templates/orderedMap.h"
 #include "base/serialiser.h"
 #include <gtest/gtest.h>
-#include <toml11/toml.hpp>
 
 namespace UnitTest
 {