diff --git a/requirements.txt b/requirements.txt
index f475316..2f57afe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 numpy
-setuptools >= 50
+setuptools >= 41
 opencv-python-headless
-ocrd >= 2.23.3
-tensorflow >= 2.6.0
+ocrd >= 2.38.0
+tensorflow >= 2.4.0