diff --git a/requirements.txt b/requirements.txt
index d08539d..7bb53ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ uniseg
 numpy
 colorama
 MarkupSafe
-ocrd >= 2.18.0
+ocrd >= 2.20.1
 attrs
 multimethod == 1.3  # latest version to officially support Python 3.5
 tqdm