diff --git a/requirements.txt b/requirements.txt
index 5a5b2f4..2013c9f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-tensorflow==1.12.0
+tensorflow==1.15.2
 numpy>=1.15.4
 sentencepiece==0.1.8
 tqdm>=4.28.1