diff --git a/requirements.txt b/requirements.txt
index 61f95b5c234d507062e58728859f949c1195c671..433a4730b34f1192338dfaac740936f7c76fe888 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,5 @@ vega_datasets==0.8.0
 mrcnn==0.2
 altair==4.1.0
 selenium==3.141.0
-pillow==8.0.0
\ No newline at end of file
+pillow==8.0.0
+protobuf==3.20.*
\ No newline at end of file