diff --git a/CMakeLists.txt b/CMakeLists.txt
index d54be3d..b5a1d6d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.10.0)
 
 project(gc_polyscope_example)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Check if Boost is installed on the system
diff --git a/deps/polyscope/include/polyscope/internal.h b/deps/polyscope/include/polyscope/internal.h
index d339e77..959d469 100644
--- a/deps/polyscope/include/polyscope/internal.h
+++ b/deps/polyscope/include/polyscope/internal.h
@@ -3,6 +3,7 @@
 #pragma once
 
 #include <string>
+#include <cstdint>
 
 
 namespace polyscope {
diff --git a/modules/include/modules/knn-cpp/knncpp.h b/modules/include/modules/knn-cpp/knncpp.h
index 05d98ec..b17c821 100644
--- a/modules/include/modules/knn-cpp/knncpp.h
+++ b/modules/include/modules/knn-cpp/knncpp.h
@@ -530,7 +530,7 @@ namespace knncpp
             indices.setConstant(knn, queryPoints.cols(), -1);
             distances.setConstant(knn, queryPoints.cols(), -1);
 
-            #pragma omp parallel for num_threads(threads_)
+            //#pragma omp parallel for num_threads(threads_)
             for(Index i = 0; i < queryPoints.cols(); ++i)
             {
                 Index *idxPoint = &indices.data()[i * knn];
@@ -1216,7 +1216,7 @@ namespace knncpp
             Index *indicesRaw = indices.data();
             Scalar *distsRaw = distances.data();
 
-            #pragma omp parallel for num_threads(threads_)
+            //#pragma omp parallel for num_threads(threads_)
             for(Index i = 0; i < queryPoints.cols(); ++i)
             {
 
@@ -1461,7 +1461,7 @@ namespace knncpp
 
             Scalar maxDistPart = maxDist_ / buckets_.size();
 
-            #pragma omp parallel for num_threads(threads_)
+            //#pragma omp parallel for num_threads(threads_)
             for(Index c = 0; c < queryPoints.cols(); ++c)
             {
                 std::set<Index> candidates;
@@ -1674,7 +1674,7 @@ namespace knncpp
                 index_->knnSearch(queryPts, indicesF, distancesF, knn, searchParams_);
 
             // make result matrices compatible to API
-            #pragma omp parallel for num_threads(searchParams_.cores)
+            //#pragma omp parallel for num_threads(searchParams_.cores)
             for(Index i = 0; i < indices.cols(); ++i)
             {
                 bool found = false;
diff --git a/src/knot_untangling.cpp b/src/knot_untangling.cpp
index dd63703..c93f0f9 100644
--- a/src/knot_untangling.cpp
+++ b/src/knot_untangling.cpp
@@ -25,6 +25,8 @@
 #include "polyscope/surface_mesh.h"
 
 #include <iostream>
+#include <chrono>
+#include <filesystem>
 
 #include <igl/triangle/triangulate.h>
 
diff --git a/src/main.cpp b/src/main.cpp
index 8602582..5843442 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -23,6 +23,8 @@
 #include "polyscope/surface_mesh.h"
 
 #include <iostream>
+#include <chrono>
+#include <filesystem>
 
 #include <igl/triangle/triangulate.h>