diff --git a/CMakeLists.txt b/CMakeLists.txt
index 666451e..cdfabac 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 # Generated Cmake Pico project file
 
-cmake_minimum_required(VERSION 3.26)
+cmake_minimum_required(VERSION 3.28)
 
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_CXX_STANDARD 23)
@@ -14,8 +14,8 @@ set(PICO_BOARD pico CACHE STRING "Board type")
 # Pull in Raspberry Pi Pico SDK (must be before project)
 include(pico_sdk_import.cmake)
 
-if (PICO_SDK_VERSION_STRING VERSION_LESS "1.5.0")
-  message(FATAL_ERROR "Raspberry Pi Pico SDK version 1.5.0 (or later) required. Your version is ${PICO_SDK_VERSION_STRING}")
+if (PICO_SDK_VERSION_STRING VERSION_LESS "2.0.0")
+  message(FATAL_ERROR "Raspberry Pi Pico SDK version 2.0.0 (or later) required. Your version is ${PICO_SDK_VERSION_STRING}")
 endif()
 
 project(raspikeyer VERSION "0.0.1" LANGUAGES C CXX ASM)
diff --git a/src/raspikeyer.cpp b/src/raspikeyer.cpp
index f0d620e..cbb36fe 100644
--- a/src/raspikeyer.cpp
+++ b/src/raspikeyer.cpp
@@ -5,6 +5,7 @@
 
 #include "bsp/board.h"
 #include "hardware/adc.h"
+#include "pico/flash.h"
 #include "pico/binary_info/code.h"
 #include "pico/multicore.h"
 #include "pico/stdlib.h"
diff --git a/src/settings.cpp b/src/settings.cpp
index 0786140..2f8316b 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -1,6 +1,7 @@
 #include <cstring>
 
 #include "pico/stdlib.h"
+#include "pico/flash.h"
 
 #include "settings.h"
 
@@ -66,4 +67,4 @@ Settings read_settings()
     }
 
     return settings;
-}
\ No newline at end of file
+}
diff --git a/src/settings.h b/src/settings.h
index cd19270..e3a78cf 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "pico/flash.h"
+#include "hardware/flash.h"
 
 const uint16_t MAGIC_NUMBER = 4;