diff --git a/libheif/heif_properties.cc b/libheif/heif_properties.cc
index 1cda4ceaa2..9a3f889565 100644
--- a/libheif/heif_properties.cc
+++ b/libheif/heif_properties.cc
@@ -24,7 +24,8 @@
 #include "file.h"
 
 #include <cstring>
-
+#include <algorithm>
+#include <memory>
 
 int heif_item_get_properties_of_type(const struct heif_context* context,
                                      heif_item_id id,
diff --git a/libheif/heif_regions.cc b/libheif/heif_regions.cc
index 3d29953d15..754c716137 100644
--- a/libheif/heif_regions.cc
+++ b/libheif/heif_regions.cc
@@ -21,20 +21,16 @@
 
 #include "libheif/heif_plugin.h"
 #include "libheif/region.h"
-#include "libheif/common_utils.h"
-#include <cstdint>
 #include "libheif/heif_regions.h"
 #include "file.h"
-#include "pixelimage.h"
 #include "api_structs.h"
 #include "context.h"
-#include "plugin_registry.h"
 #include "error.h"
-#include "bitstream.h"
-#include "init.h"
 #include <set>
-#include <limits>
 #include <cstring>
+#include <memory>
+#include <vector>
+#include <string>
 
 
 int heif_image_handle_get_number_of_region_items(const struct heif_image_handle* handle)