diff --git a/requirements.txt b/requirements.txt
index 43f1bde..397877b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ numpy==1.19.2
 scipy==1.1.0
 scikit-learn==0.23.0
 sktime==0.4.1
-tensorflow==1.15.3
+tensorflow==2.6.4
 gpflow==1.5.1
 keras==2.3.1
 requests==2.24.0