diff --git a/requirements.txt b/requirements.txt
index 5244efc..e61d573 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,9 @@ certifi==2022.5.18.1
 charset-normalizer==2.0.12
 idna==3.3
 isodate==0.6.1
+numpy==1.22.4
+opencv-contrib-python-headless==4.6.0.66
+Pillow==9.1.1
 pyparsing==3.0.9
 rdflib==6.1.1
 requests==2.27.1