diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7a1197540..686405118 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -171,9 +171,9 @@ add_definitions(-DEMU_ARCH_BITS=${EMU_ARCH_BITS})
 # System imported libraries
 # ======================
 
-find_package(Boost 1.63.0 QUIET)
+find_package(Boost 1.66.0 QUIET)
 if (NOT Boost_FOUND)
-    message(STATUS "Boost 1.63.0 or newer not found, falling back to externals")
+    message(STATUS "Boost 1.66.0 or newer not found, falling back to externals")
 
     set(BOOST_ROOT "${CMAKE_SOURCE_DIR}/externals/boost")
     set(Boost_NO_SYSTEM_PATHS OFF)