diff --git a/sdk/pb/requirements.txt b/sdk/pb/requirements.txt
index 69db8ac..a20e761 100644
--- a/sdk/pb/requirements.txt
+++ b/sdk/pb/requirements.txt
@@ -1,4 +1,4 @@
-tensorflow==1.14
+tensorflow==1.15.4
 numpy
 pillow
 opencv-python==3.4.5.20