diff --git a/requirements.txt b/requirements.txt
index 280eadd..2e1fc79 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # ocrd includes opencv, numpy, shapely, click
-ocrd >= 3.1.0
+ocrd >= 3.3.0
 numpy <1.24.0
 scikit-learn >= 0.23.2
 tensorflow < 2.13