diff --git a/CMakeLists.txt b/CMakeLists.txt
index 42ff98f..1cc5e08 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,7 +47,8 @@ else()
 endif()
 
 # find c++utilities
-find_package(c++utilities 4.17.0 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 the source directory of c++utilities for includes rather than the location where headers are going to be installed
 # note: this enables the tests to find the header files for c++utilities in case it is built within the same project
diff --git a/generator/main.cpp b/generator/main.cpp
index 656f7aa..ebe01de 100644
--- a/generator/main.cpp
+++ b/generator/main.cpp
@@ -9,7 +9,6 @@
 #include <c++utilities/application/failure.h>
 #include <c++utilities/conversion/stringconversion.h>
 #include <c++utilities/io/ansiescapecodes.h>
-#include <c++utilities/io/catchiofailure.h>
 #include <c++utilities/io/misc.h>
 
 #include <cstring>
@@ -123,9 +122,8 @@ int main(int argc, char *argv[])
             return -2;
         }
 
-    } catch (...) {
-        catchIoFailure();
-        const char *errorMessage;
+    } catch (const std::ios_base::failure &failure) {
+        const char *errorMessage = failure.what();
         if (os) {
             errorMessage = os->fail() || os->bad() ? "An IO error occured when writing to the output stream." : "An IO error occured.";
         } else {
diff --git a/lib/binary/reflector.h b/lib/binary/reflector.h
index 98691f4..a09e8a9 100644
--- a/lib/binary/reflector.h
+++ b/lib/binary/reflector.h
@@ -10,7 +10,6 @@
 #include "../traits.h"
 
 #include <c++utilities/conversion/conversionexception.h>
-#include <c++utilities/conversion/types.h>
 #include <c++utilities/io/binaryreader.h>
 #include <c++utilities/io/binarywriter.h>
 
@@ -39,7 +38,8 @@ namespace BinaryReflector {
 
 // define traits to distinguish between "built-in" types like int, std::string, std::vector, ... and custom structs/classes
 template <typename Type>
-using IsBuiltInType = Traits::Any<Traits::IsAnyOf<Type, char, byte, bool, std::string, int16, uint16, int32, uint32, int64, uint64, float32, float64>,
+using IsBuiltInType = Traits::Any<Traits::IsAnyOf<Type, char, std::uint8_t, bool, std::string, std::int16_t, std::uint16_t, std::int32_t,
+                                      std::uint32_t, std::int64_t, std::uint64_t, float, double>,
     Traits::IsIteratable<Type>, Traits::IsSpecializingAnyOf<Type, std::pair, std::unique_ptr, std::shared_ptr>, std::is_enum<Type>>;
 template <typename Type> using IsCustomType = Traits::Not<IsBuiltInType<Type>>;
 
@@ -66,7 +66,7 @@ public:
     template <typename Type, Traits::EnableIf<std::is_enum<Type>> * = nullptr> void read(Type &customType);
     template <typename Type, Traits::EnableIf<IsCustomType<Type>> * = nullptr> void read(Type &customType);
 
-    std::unordered_map<uint64, std::any> m_pointer;
+    std::unordered_map<std::uint64_t, std::any> m_pointer;
 };
 
 class BinarySerializer : public IoUtilities::BinaryWriter {
@@ -81,7 +81,7 @@ public:
     template <typename Type, Traits::EnableIf<std::is_enum<Type>> * = nullptr> void write(const Type &customType);
     template <typename Type, Traits::EnableIf<IsCustomType<Type>> * = nullptr> void write(const Type &customType);
 
-    std::unordered_map<uint64, bool> m_pointer;
+    std::unordered_map<std::uint64_t, bool> m_pointer;
 };
 
 inline BinaryDeserializer::BinaryDeserializer(std::istream *stream)
@@ -202,7 +202,7 @@ template <typename Type, Traits::EnableIf<Traits::IsSpecializingAnyOf<Type, std:
     const auto id = reinterpret_cast<std::uintptr_t>(pointer.get());
     const auto bigId = id >= 0x80000000000000;
     auto &alreadyWritten = m_pointer[id];
-    byte mode = alreadyWritten ? 2 : 1;
+    std::uint8_t mode = alreadyWritten ? 2 : 1;
     if (bigId) {
         mode = mode | 0x4; // "flag" 3rd bit to indicate big ID
     }
diff --git a/lib/json/errorhandling.h b/lib/json/errorhandling.h
index 7936c30..9f41c6f 100644
--- a/lib/json/errorhandling.h
+++ b/lib/json/errorhandling.h
@@ -6,11 +6,11 @@
  * \brief Contains helper for error handling when deserializing JSON files.
  */
 
-#include <c++utilities/conversion/types.h>
 #include <c++utilities/misc/traits.h>
 
 #include <rapidjson/rapidjson.h>
 
+#include <cstdint>
 #include <limits>
 #include <list>
 #include <string>
@@ -21,7 +21,7 @@ namespace ReflectiveRapidJSON {
 /*!
  * \brief The JsonDeserializationErrorKind enum specifies which kind of error happend when populating variables from parsing results.
  */
-enum class JsonDeserializationErrorKind : byte {
+enum class JsonDeserializationErrorKind : std::uint8_t {
     TypeMismatch, /**< The expected type does not match the type actually present in the JSON document. */
     ArraySizeMismatch, /**< The expected array size does not match the actual size of the JSON array. A fixed size is expected when deserializing an std::tuple. */
     ConversionError, /**< The expected type matches the type present in the JSON document, but further conversion of the value failed. */
@@ -32,7 +32,7 @@ enum class JsonDeserializationErrorKind : byte {
  * \brief The JsonType enum specifies the JSON data type.
  * \remarks This is currently only used for error handling to propagate expected and actual types in case of a mismatch.
  */
-enum class JsonType : byte {
+enum class JsonType : std::uint8_t {
     Null,
     Number,
     Bool,
@@ -164,7 +164,13 @@ struct JsonDeserializationErrors : public std::vector<JsonDeserializationError>
     /// \brief The index in the array which is currently processed.
     std::size_t currentIndex;
     /// \brief The list of fatal error types in form of flags.
-    enum class ThrowOn : byte { None = 0, TypeMismatch = 0x1, ArraySizeMismatch = 0x2, ConversionError = 0x4, UnexpectedDuplicate = 0x8 } throwOn;
+    enum class ThrowOn : std::uint8_t {
+        None = 0,
+        TypeMismatch = 0x1,
+        ArraySizeMismatch = 0x2,
+        ConversionError = 0x4,
+        UnexpectedDuplicate = 0x8
+    } throwOn;
 
 private:
     void throwMaybe(ThrowOn on) const;
@@ -186,7 +192,7 @@ inline JsonDeserializationErrors::JsonDeserializationErrors()
  */
 constexpr JsonDeserializationErrors::ThrowOn operator|(JsonDeserializationErrors::ThrowOn lhs, JsonDeserializationErrors::ThrowOn rhs)
 {
-    return static_cast<JsonDeserializationErrors::ThrowOn>(static_cast<byte>(lhs) | static_cast<byte>(rhs));
+    return static_cast<JsonDeserializationErrors::ThrowOn>(static_cast<std::uint8_t>(lhs) | static_cast<std::uint8_t>(rhs));
 }
 
 /*!
@@ -196,7 +202,7 @@ constexpr JsonDeserializationErrors::ThrowOn operator|(JsonDeserializationErrors
  */
 inline void JsonDeserializationErrors::throwMaybe(ThrowOn on) const
 {
-    if (static_cast<byte>(throwOn) & static_cast<byte>(on)) {
+    if (static_cast<std::uint8_t>(throwOn) & static_cast<std::uint8_t>(on)) {
         throw back();
     }
 }
diff --git a/lib/json/reflector.h b/lib/json/reflector.h
index 2760bd7..8c6436a 100644
--- a/lib/json/reflector.h
+++ b/lib/json/reflector.h
@@ -9,8 +9,6 @@
 
 #include "../traits.h"
 
-#include <c++utilities/conversion/types.h>
-
 #include <rapidjson/document.h>
 #include <rapidjson/rapidjson.h>
 #include <rapidjson/stringbuffer.h>
@@ -153,7 +151,8 @@ inline void push(Type reflectable, RAPIDJSON_NAMESPACE::Value &value, RAPIDJSON_
 template <typename Type, Traits::EnableIfAny<std::is_enum<Type>> * = nullptr>
 inline void push(Type reflectable, RAPIDJSON_NAMESPACE::Value &value, RAPIDJSON_NAMESPACE::Document::AllocatorType &allocator)
 {
-    value.Set(static_cast<Traits::Conditional<std::is_unsigned<typename std::underlying_type<Type>::type>, uint64, int64>>(reflectable), allocator);
+    value.Set(static_cast<Traits::Conditional<std::is_unsigned<typename std::underlying_type<Type>::type>, std::uint64_t, std::int64_t>>(reflectable),
+        allocator);
 }
 
 /*!
@@ -459,7 +458,7 @@ template <typename Type, Traits::EnableIfAny<std::is_enum<Type>> * = nullptr>
 inline void pull(
     Type &reflectable, const RAPIDJSON_NAMESPACE::GenericValue<RAPIDJSON_NAMESPACE::UTF8<char>> &value, JsonDeserializationErrors *errors)
 {
-    using ExpectedType = Traits::Conditional<std::is_unsigned<typename std::underlying_type<Type>::type>, uint64, int64>;
+    using ExpectedType = Traits::Conditional<std::is_unsigned<typename std::underlying_type<Type>::type>, std::uint64_t, std::int64_t>;
     if (!value.Is<ExpectedType>()) {
         if (errors) {
             errors->reportTypeMismatch<ExpectedType>(value.GetType());
diff --git a/lib/tests/binaryreflector.cpp b/lib/tests/binaryreflector.cpp
index 01a805e..31a38fe 100644
--- a/lib/tests/binaryreflector.cpp
+++ b/lib/tests/binaryreflector.cpp
@@ -11,6 +11,7 @@ using TestUtilities::operator<<; // must be visible prior to the call site
 #include <cppunit/TestFixture.h>
 #include <cppunit/extensions/HelperMacros.h>
 
+#include <cstdint>
 #include <iostream>
 #include <limits>
 #include <map>
@@ -38,7 +39,7 @@ enum SomeEnum {
     SomeEnumItem3,
 };
 
-enum class SomeEnumClass : uint16 {
+enum class SomeEnumClass : std::uint16_t {
     Item1,
     Item2,
     Item3,