diff --git a/CMakeLists.txt b/CMakeLists.txt
index be6024241..94d0e542f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,8 +29,9 @@ set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
 include(GNUInstallDirs)
 
-find_package(Eigen3 CONFIG REQUIRED)
+cmake_policy(SET CMP0167 OLD)  # libboost-headers packaged by conda does not come with BoostConfig.cmake
 find_package(Boost REQUIRED)
+find_package(Eigen3 CONFIG REQUIRED)
 find_package(nlohmann_json CONFIG REQUIRED)
 find_package(msgpack-cxx REQUIRED)