diff --git a/ChaosTests/Mac/HmacTests.cpp b/ChaosTests/Mac/HmacTests.cpp
index 6386738..9ba6264 100644
--- a/ChaosTests/Mac/HmacTests.cpp
+++ b/ChaosTests/Mac/HmacTests.cpp
@@ -1,6 +1,7 @@
 #include <gtest/gtest.h>
 #include "TestHelpers/AssertThrowEx.hpp"
 
+#include <array>
 #include <cstring>
 #include <string>
 #include <cstdint>
diff --git a/ChaosTests/Padding/PadderPkcs7Tests.cpp b/ChaosTests/Padding/PadderPkcs7Tests.cpp
index 98f456c..8111bf5 100644
--- a/ChaosTests/Padding/PadderPkcs7Tests.cpp
+++ b/ChaosTests/Padding/PadderPkcs7Tests.cpp
@@ -4,6 +4,8 @@
 #include <array>
 #include <cstdint>
 #include <vector>
+#include <iterator>
+#include <algorithm>
 
 #include "Padding/PadderPkcs7.hpp"
 #include "Padding/Padder.hpp"