diff --git a/nlp-tools/requirements.txt b/nlp-tools/requirements.txt
index d71af18..9414068 100644
--- a/nlp-tools/requirements.txt
+++ b/nlp-tools/requirements.txt
@@ -1 +1,2 @@
+thinc==8.0.17  --only-binary :all:
 git+http://vxgit.intra.inist.fr:60000/git/RichText/NLP_tools.git@1.6.3#egg=nlptools