diff --git a/CMakeLists.txt b/CMakeLists.txt
index 93fc458..eda7b49 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -88,7 +88,7 @@ endforeach()
 set(BR_THIRDPARTY_LIBS ${BR_THIRDPARTY_LIBS} ${Qt5Core_QTMAIN_LIBRARIES})
 
 # Find OpenCV
-find_package(OpenCV REQUIRED)
+find_package(OpenCV 2.4.5 REQUIRED)
 set(OPENCV_DEPENDENCIES opencv_calib3d opencv_core opencv_features2d opencv_flann opencv_gpu opencv_highgui opencv_imgproc opencv_ml opencv_nonfree opencv_objdetect opencv_photo opencv_video)
 set(BR_THIRDPARTY_LIBS ${BR_THIRDPARTY_LIBS} ${OpenCV_LIBS})