diff --git a/requirements.txt b/requirements.txt
index 20f899a0275c9660073b7d002f1279a912aa2ce8..95dc3a02626e60e89bdc2bd0d5cbd73ce86363d1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,11 +6,13 @@ flashlight-text==0.0.4
 imageio==2.26.1
 imagesize==1.4.1
 mdutils==1.6.0
+nltk==3.8.1
 numpy==1.24.3
 prettytable==3.8.0
 PyYAML==6.0
 scipy==1.10.1
-teklia-line-image-extractor==0.2.8rc5
+sentencepiece==0.1.99
+teklia-line-image-extractor==0.2.8rc4
 tenacity==8.2.3
 tensorboard==2.12.2
 torch==2.0.0