diff --git a/travis_build_opencv.sh b/travis_build_opencv.sh
index 8b7df934..2c9c20d1 100755
--- a/travis_build_opencv.sh
+++ b/travis_build_opencv.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -eux -o pipefail
 
-OPENCV_VERSION=${OPENCV_VERSION:-3.3.0}
+OPENCV_VERSION=${OPENCV_VERSION:-3.3.1}
 
 #GRAPHICAL=ON
 GRAPHICAL=${GRAPHICAL:-OFF}