diff --git a/requirements.txt b/requirements.txt
index 34f3803..40f37f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 defusedxml>=0.7.1
-protobuf>=3.20.1
+protobuf==3.20.1
 pycryptodomex>=3.21.0
 pyogg>=0.6.14a.1
 requests>=2.32.3