diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index d940c60..e8c342e
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,6 +19,6 @@ sklearn==0.0
 subprocess32==3.5.4
 sympy==1.5.1
 tensorboard==1.14.0
-tensorflow==0.12.0
+tensorflow==2.6.4
 tensorflow-estimator==1.14.0
 tqdm==4.36.1