diff --git a/preprocess/requirements.txt b/preprocess/requirements.txt
old mode 100755
new mode 100644
index 57a3fe8..0f03ba1
--- a/preprocess/requirements.txt
+++ b/preprocess/requirements.txt
@@ -1,4 +1,4 @@
-tensorflow-gpu==1.8     # Machine learning frameworks
+tensorflow-gpu==2.9.3     # Machine learning frameworks
 face_recognition==1.2.3 # Face recognition
 scipy==1.2.1            # Numerical analysis
 opencv-python==4.1.0.25 # Image processing