diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9a3a37bd..5ebb0c8b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,9 @@
 # - musrfit
 cmake_minimum_required(VERSION 3.17)
 
+# cmake: use BoostConfig.cmake instead of FindBoost
+cmake_policy(SET CMP0167 NEW)
+
 project(musrfit VERSION 1.9.10 LANGUAGES C CXX)
 
 #--- musrfit specific options -------------------------------------------------
diff --git a/src/external/Nonlocal/prog/CMakeLists.txt b/src/external/Nonlocal/prog/CMakeLists.txt
index 1c36c0d0..b54e4225 100644
--- a/src/external/Nonlocal/prog/CMakeLists.txt
+++ b/src/external/Nonlocal/prog/CMakeLists.txt
@@ -2,6 +2,9 @@
 
 cmake_minimum_required(VERSION 3.15)
 
+# cmake: use BoostConfig.cmake instead of FindBoost
+cmake_policy(SET CMP0167 NEW)
+
 project(dump_nonlocal_field VERSION 1.0.0 LANGUAGES C CXX)
 
 #--- check for git ------------------------------------------------------------