diff --git a/pyproject.toml b/pyproject.toml
index 99627a5..afb0edb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
   "grpcio >=1.66.1, < 2",
   "grpcio-tools >=1.66.1, < 2",
   "protobuf >=5.28.2, < 6",
-  "frequenz-client-base >= 0.8.0, < 0.9.0",
+  "frequenz-client-base >= 0.8.0, < 0.10.0",
 ]
 dynamic = ["version"]