diff --git a/include/xlnt/xlnt.hpp b/include/xlnt/xlnt.hpp
index 92326abd..01cd2b33 100644
--- a/include/xlnt/xlnt.hpp
+++ b/include/xlnt/xlnt.hpp
@@ -35,9 +35,7 @@
 #include <xlnt/cell/text_run.hpp>
 
 // packaging
-#include <xlnt/packaging/app_properties.hpp>
 #include <xlnt/packaging/default_type.hpp>
-#include <xlnt/packaging/document_properties.hpp>
 #include <xlnt/packaging/manifest.hpp>
 #include <xlnt/packaging/override_type.hpp>
 #include <xlnt/packaging/relationship.hpp>
diff --git a/source/cell/cell.cpp b/source/cell/cell.cpp
index 17fdf45f..6718dbd3 100644
--- a/source/cell/cell.cpp
+++ b/source/cell/cell.cpp
@@ -29,7 +29,6 @@
 #include <xlnt/cell/cell_reference.hpp>
 #include <xlnt/cell/comment.hpp>
 #include <xlnt/cell/text.hpp>
-#include <xlnt/packaging/document_properties.hpp>
 #include <xlnt/packaging/relationship.hpp>
 #include <xlnt/styles/color.hpp>
 #include <xlnt/styles/format.hpp>
diff --git a/source/detail/excel_serializer.cpp b/source/detail/excel_serializer.cpp
index 90ed270c..100936d5 100644
--- a/source/detail/excel_serializer.cpp
+++ b/source/detail/excel_serializer.cpp
@@ -37,7 +37,6 @@
 #include <detail/workbook_serializer.hpp>
 #include <detail/worksheet_serializer.hpp>
 #include <xlnt/cell/text.hpp>
-#include <xlnt/packaging/document_properties.hpp>
 #include <xlnt/packaging/manifest.hpp>
 #include <xlnt/styles/format.hpp>
 #include <xlnt/styles/style.hpp>
diff --git a/source/detail/workbook_serializer.cpp b/source/detail/workbook_serializer.cpp
index 61def9c4..a916372b 100644
--- a/source/detail/workbook_serializer.cpp
+++ b/source/detail/workbook_serializer.cpp
@@ -27,8 +27,6 @@
 
 #include <detail/constants.hpp>
 #include <detail/workbook_serializer.hpp>
-#include <xlnt/packaging/app_properties.hpp>
-#include <xlnt/packaging/document_properties.hpp>
 #include <xlnt/packaging/manifest.hpp>
 #include <xlnt/packaging/relationship.hpp>
 #include <xlnt/utils/datetime.hpp>
diff --git a/source/packaging/tests/test_core.hpp b/source/packaging/tests/test_core.hpp
index 4da9bf73..27adf537 100644
--- a/source/packaging/tests/test_core.hpp
+++ b/source/packaging/tests/test_core.hpp
@@ -3,9 +3,7 @@
 #include <iostream>
 #include <cxxtest/TestSuite.h>
 
-#include <xlnt/packaging/app_properties.hpp>
 #include <detail/workbook_serializer.hpp>
-
 #include <helpers/path_helper.hpp>
 #include <helpers/xml_helper.hpp>
 
diff --git a/source/workbook/workbook.cpp b/source/workbook/workbook.cpp
index ccf958fc..243908ab 100644
--- a/source/workbook/workbook.cpp
+++ b/source/workbook/workbook.cpp
@@ -34,8 +34,6 @@
 #include <detail/include_windows.hpp>
 #include <detail/workbook_impl.hpp>
 #include <detail/worksheet_impl.hpp>
-#include <xlnt/packaging/app_properties.hpp>
-#include <xlnt/packaging/document_properties.hpp>
 #include <xlnt/packaging/manifest.hpp>
 #include <xlnt/packaging/relationship.hpp>
 #include <xlnt/packaging/zip_file.hpp>