diff --git a/pyproject.toml b/pyproject.toml
index 62a787f..9b68999 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ requires-python = ">= 3.11, < 4"
 dependencies = [
   "frequenz-channels >= 1.8.0, < 2",
   "grpcio >= 1.59, < 2",
-  "protobuf >= 5.29.2, < 7",
+  "protobuf >= 5.29.2, < 8",
   "typing-extensions >= 4.12.0, < 5",
 ]
 dynamic = ["version"]