diff --git a/tools/elf2uf2/CMakeLists.txt b/tools/elf2uf2/CMakeLists.txt
index fb5625f51..bc8b360e9 100644
--- a/tools/elf2uf2/CMakeLists.txt
+++ b/tools/elf2uf2/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.13)
 project(elf2uf2)
 
 set(CMAKE_CXX_STANDARD 14)
diff --git a/tools/pioasm/CMakeLists.txt b/tools/pioasm/CMakeLists.txt
index 322408aba..14f2c94b4 100644
--- a/tools/pioasm/CMakeLists.txt
+++ b/tools/pioasm/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.4)
+cmake_minimum_required(VERSION 3.13)
 project(pioasm CXX)
 
 set(CMAKE_CXX_STANDARD 11)