diff --git a/requirements.txt b/requirements.txt
index d89f54e..78d5a66 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 biplist==1.0.3
 hexdump==3.3
-protobuf==3.17.3
+protobuf==3.18.3
 pyasn1==0.5.0
 pycryptodome==3.19.0