diff --git a/Cargo.lock b/Cargo.lock
index d6988f17..ecfebb29 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1541,7 +1541,7 @@ dependencies = [
 
 [[package]]
 name = "grpc"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "async-stream",
  "base64 0.22.1",
@@ -1552,7 +1552,7 @@ dependencies = [
  "jiff",
  "pretty_assertions",
  "prost",
- "rand 0.9.0",
+ "rand 0.8.5",
  "serde",
  "serde_json",
  "tokio",
diff --git a/extensions/grpc/Cargo.toml b/extensions/grpc/Cargo.toml
index bae50ed9..bc000c22 100644
--- a/extensions/grpc/Cargo.toml
+++ b/extensions/grpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "grpc"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2024"
 license = "Apache-2.0"
 
diff --git a/extensions/grpc/README.md b/extensions/grpc/README.md
index 671b7aaf..1e39cfb5 100644
--- a/extensions/grpc/README.md
+++ b/extensions/grpc/README.md
@@ -63,7 +63,7 @@ address = "{{ env.PRICING_SERVICE_URL }}"
 
 ## Generation of virtual subgraph schemas from Protobuf definitions
 
-Use the protobuf compiler plugin: `protoc-gen-grafbase-subgraph`. TODO.
+There is a companion tool to this extension, that can generate a subgraph schema for your gRPC services from the protocol buffer definitions: [protoc-gen-grafbase-subgraph](https://github.com/grafbase/grafbase/tree/main/crates/protoc-gen-grafbase-subgraph). See its [README](https://github.com/grafbase/grafbase/tree/main/crates/protoc-gen-grafbase-subgraph/README.md) for instructions on using it with `protoc` and `buf`.
 
 ## Conventions
 
diff --git a/extensions/grpc/extension.toml b/extensions/grpc/extension.toml
index 2709daa0..74034b60 100644
--- a/extensions/grpc/extension.toml
+++ b/extensions/grpc/extension.toml
@@ -1,6 +1,6 @@
 [extension]
 name = "grpc"
-version = "0.1.0"
+version = "0.1.1"
 kind = "resolver"
 description = "Integrate the Grafbase Gateway communicate with your gRPC services declaratively."
 repository_url = "https://github.com/grafbase/extensions/tree/main/extensions/grpc"