diff --git a/submissions/87vogelsang/requirements.txt b/submissions/87vogelsang/requirements.txt
old mode 100755
new mode 100644
index 1b71cc2..7065c94
--- a/submissions/87vogelsang/requirements.txt
+++ b/submissions/87vogelsang/requirements.txt
@@ -1,5 +1,5 @@
 Keras==2.2.2
 scikit-learn==0.19.2
-tensorflow-gpu==1.10.1
+tensorflow-gpu==2.3.1
 gensim==3.5.0
 numpy==1.14.5
\ No newline at end of file