diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0137f6d..4f284da 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -56,7 +56,7 @@ Pillow==10.0.0
 pip==23.2.1
 pkgutil_resolve_name==1.3.10
 pose-format==0.2.2
-protobuf==3.19.6
+protobuf==6.33.5
 pyasn1==0.5.0
 pyasn1-modules==0.3.0
 pybtex==0.24.0