diff --git a/src/std_include.hpp b/src/std_include.hpp
index dcac135..6ba6a5f 100644
--- a/src/std_include.hpp
+++ b/src/std_include.hpp
@@ -69,10 +69,8 @@
 #include <fstream>
 #include <iostream>
 #include <utility>
-#include <filesystem>
 #include <functional>
 #include <sstream>
-#include <optional>
 
 #include <gsl/gsl>