diff --git a/requirements.txt b/requirements.txt
index 265a045..842e833 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ google-cloud-speech==1.2.0
 kthread==0.2.2
 lxml==4.3.3
 Pillow==8.1.0
-protobuf==3.7.1
+protobuf==3.18.3
 pymongo==3.7.2
 selenium==3.141.0
 urllib3==1.25.2