diff --git a/requirements.txt b/requirements.txt
index dd45298f0..368eec41d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,3 +46,4 @@ pyhyphen
 langcodes
 manga-ocr
 langdetect
+pydensecrf@https://github.com/lucasb-eyer/pydensecrf/archive/refs/heads/master.zip