diff --git a/requirements.txt b/requirements.txt
index 6741fa2..a57ef86 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,14 +1,16 @@
 click
 jinja2
 lxml
-uniseg >= 0.8.0
+# FIXME
+uniseg == 0.8.1
 numpy
 colorama
 MarkupSafe
-ocrd >= 2.65.0
+ocrd >= 3.3.0
 attrs
 multimethod >= 1.3
 tqdm
-rapidfuzz >= 2.7.0
+# FIXME
+rapidfuzz >= 2.7.0, < 3
 chardet
 importlib_resources