diff --git a/requirements.txt b/requirements.txt
index 05f379d..873e01c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 clint==0.5.1
 requests==2.22.0
-protobuf==3.4.0
+protobuf==3.15.0
 pycryptodome==3.8.2
\ No newline at end of file