diff --git a/text-detection-ctpn-banjin-dev/requirements.txt b/text-detection-ctpn-banjin-dev/requirements.txt
index ce6d486..5a65f0a 100644
--- a/text-detection-ctpn-banjin-dev/requirements.txt
+++ b/text-detection-ctpn-banjin-dev/requirements.txt
@@ -1,5 +1,5 @@
 tqdm==4.11.2
-opencv-python==3.4.0.12
+opencv-python==3.4.7.28
 Shapely==1.6.4.post1
 matplotlib==1.5.3
 numpy==1.14.2