diff --git a/pyproject.toml b/pyproject.toml
index 5a43cb106..20c4a7930 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,7 +76,7 @@ dependencies = [
   "phonenumberslite==9.0.*",
   "Pillow==11.2.*",
   "pretix-plugin-build",
-  "protobuf==6.30.*",
+  "protobuf==6.31.*",
   "psycopg2-binary",
   "pycountry",
   "pycparser==2.22",