diff --git a/docs/source/requirements.txt b/docs/source/requirements.txt
index 3f49c9f..fb975e3 100644
--- a/docs/source/requirements.txt
+++ b/docs/source/requirements.txt
@@ -1,4 +1,4 @@
 numpy #== 1.21.6
 matplotlib #== 3.3.4
-protobuf == 3.20
+protobuf == 4.25.8
 #libprotobuf == 3.19.1
\ No newline at end of file