diff --git a/sentence-embedding/code-env/python/spec/requirements.txt b/sentence-embedding/code-env/python/spec/requirements.txt
old mode 100755
new mode 100644
index d97a70a4..9ef69f74
--- a/sentence-embedding/code-env/python/spec/requirements.txt
+++ b/sentence-embedding/code-env/python/spec/requirements.txt
@@ -2,5 +2,5 @@ numpy==1.16.4
 scipy==1.2.2
 gensim==3.8.0
 scikit-learn==0.20.4
-tensorflow==1.14.0
+tensorflow==1.15.2
 tensorflow-hub==0.5.0