diff --git a/README.md b/README.md
index c7fd9332c..6515addee 100644
--- a/README.md
+++ b/README.md
@@ -53,10 +53,7 @@ More complete examples are located [here](examples).
 Cargo.toml:
 ```toml
 [dependencies]
-gcloud-sdk = { version = "0.20", features = ["google-firestore-v1"] }
-tonic = { version = "0.9", features = ["tls"] }
-prost = "0.11"
-prost-types = "0.11"
+gcloud-sdk = { version = "0.21", features = ["google-firestore-v1"] }
 ```
 
 ## Example for REST API