diff --git a/requirements.txt b/requirements.txt
index 0d5921a..72f5522 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,7 +53,7 @@ pandas==0.25.0
 pathspec==0.5.9
 paypalrestsdk==1.13.1
 pipreqs==0.4.9
-protobuf==3.9.1
+protobuf==3.18.3
 pusher==2.1.4
 pyasn1==0.4.6
 pyasn1-modules==0.2.6
diff --git a/test.txt b/test.txt
index fc39f8d..ff50d24 100644
--- a/test.txt
+++ b/test.txt
@@ -53,7 +53,7 @@ pandas==0.25.0
 pathspec==0.5.9
 paypalrestsdk==1.13.1
 pipreqs==0.4.9
-protobuf==3.9.1
+protobuf==3.18.3
 pusher==2.1.4
 pyasn1==0.4.6
 pyasn1-modules==0.2.6