diff --git a/requirements.txt b/requirements.txt
index 0b3d819..123187b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ uniseg >= 0.9.1
 numpy
 colorama
 MarkupSafe
-ocrd >= 2.65.0
+ocrd >= 3.3.0
 attrs
 multimethod >= 1.3
 tqdm