diff --git a/requirements.txt b/requirements.txt
index 3e2cb63..ab8e593 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ picosvg==0.21.0
 Pillow==9.5.0
 pip-api==0.0.30
 pngquant-cli==2.17.0.post5
-protobuf==3.20.3
+protobuf==5.29.6
 pyahocorasick==2.0.0
 pybind11==2.10.4
 pyclipper==1.3.0.post4