diff --git a/CMakeLists.txt b/CMakeLists.txt
index d75b42c9..fbfd1bcf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -102,7 +102,7 @@ set(Boost_USE_MULTITHREAD ON)
 set(Boost_USE_STATIC_LIBS ON CACHE BOOL "Set to ON to force the use of the static libraries.")
 set(Boost_USE_STATIC_RUNTIME OFF)
 
-find_package(Boost 1.68 COMPONENTS system program_options filesystem date_time REQUIRED)
+find_package(Boost 1.67 COMPONENTS system program_options filesystem date_time REQUIRED)
 
 
 # Qt ---------------------------------------------------------------------------