diff --git a/pyproject.toml b/pyproject.toml
index e3c7181..4d55b36 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,6 +43,7 @@ classifiers = [
 
 dependencies = [
     "spacy>=3.4.1,<3.5.0",
+    "spacy-transformers>=1.1.8,<1.2.0",
     "lemminflect>=0.2.3,<0.3.0",
 ]