diff --git a/CMakeLists.txt b/CMakeLists.txt
index ad501e2..69b9f19 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -151,11 +151,12 @@ set(REQUIRED_ICONS
 )
 
 # find c++utilities
-find_package(c++utilities 4.10.0 REQUIRED)
+set(CONFIGURATION_PACKAGE_SUFFIX "" CACHE STRING "sets the suffix for find_package() calls to packages configured via c++utilities")
+find_package(c++utilities${CONFIGURATION_PACKAGE_SUFFIX} 5.0.0 REQUIRED)
 use_cpp_utilities()
 
 # find qtutilities
-find_package(qtutilities 5.0.0 REQUIRED)
+find_package(qtutilities${CONFIGURATION_PACKAGE_SUFFIX} 6.0.0 REQUIRED)
 use_qt_utilities()
 
 # add Qt modules which can currently not be detected automatically
diff --git a/network/download.cpp b/network/download.cpp
index 2f88352..d8a8199 100644
--- a/network/download.cpp
+++ b/network/download.cpp
@@ -7,7 +7,6 @@
 #include "./youtubedownload.h"
 
 #include <c++utilities/io/path.h>
-#include <c++utilities/misc/random.h>
 
 #include <QFileInfo>
 #include <QIODevice>