diff --git a/src/bound_pop.cpp b/src/bound_pop.cpp
index b20e807..78d4693 100644
--- a/src/bound_pop.cpp
+++ b/src/bound_pop.cpp
@@ -28,6 +28,7 @@
 
 #include <unistd.h>
 
+#include <algorithm>
 #include <filesystem>
 #include <fstream>
 #include <iostream>
diff --git a/src/c_curve.cpp b/src/c_curve.cpp
index d47423b..4ada033 100644
--- a/src/c_curve.cpp
+++ b/src/c_curve.cpp
@@ -32,6 +32,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <algorithm>
 #include <cmath>
 #include <cstddef>
 #include <cstdint>
@@ -41,6 +42,7 @@
 #include <iostream>
 #include <numeric>
 #include <random>
+#include <string>
 #include <unordered_map>
 #include <vector>
 
diff --git a/src/gc_extrap.cpp b/src/gc_extrap.cpp
index d3ab49d..dffe274 100644
--- a/src/gc_extrap.cpp
+++ b/src/gc_extrap.cpp
@@ -25,6 +25,7 @@
 
 #include <OptionParser.hpp>
 
+#include <algorithm>
 #include <filesystem>
 #include <fstream>
 #include <iostream>