diff --git a/requirements.txt b/requirements.txt
index ee2a98c..a457ba9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ lxml==4.7.1
 mock==4.0.3
 numpy==1.21.5
 ordereddict==1.1
-protobuf==3.19.1
+protobuf==3.19.5
 PyJWT==2.3.0
 pyOpenSSL==21.0.0
 simplejson==3.17.6