diff --git a/tests/libappimage/core/impl/TestTraversalType2.cpp b/tests/libappimage/core/impl/TestTraversalType2.cpp
index 0f192858..fb9222b5 100644
--- a/tests/libappimage/core/impl/TestTraversalType2.cpp
+++ b/tests/libappimage/core/impl/TestTraversalType2.cpp
@@ -1,4 +1,5 @@
 // system
+#include <algorithm>
 #include <fstream>
 
 // library
diff --git a/tests/libappimage/temporarydirectory/CMakeLists.txt b/tests/libappimage/temporarydirectory/CMakeLists.txt
index 22dc959e..1819fad9 100644
--- a/tests/libappimage/temporarydirectory/CMakeLists.txt
+++ b/tests/libappimage/temporarydirectory/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.4)
+cmake_minimum_required(VERSION 3.6)
 
 add_library(temporarydirectory TemporaryDirectory.cpp)
 target_include_directories(temporarydirectory PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/tests/libappimage/utils/TestResourcesExtractor.cpp b/tests/libappimage/utils/TestResourcesExtractor.cpp
index bc3c8431..23e96764 100644
--- a/tests/libappimage/utils/TestResourcesExtractor.cpp
+++ b/tests/libappimage/utils/TestResourcesExtractor.cpp
@@ -1,4 +1,5 @@
 // system
+#include <algorithm>
 #include <sstream>
 
 // library headers