diff --git a/Cargo.toml b/Cargo.toml
index b3c283b..c8c2190 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ authors = ["Apollo Developers <opensource@apollographql.com>"]
 readme = "README.md"
 
 [dependencies]
-apollo-encoder = "0.3.2"
+apollo-encoder = "0.4.0"
 backoff = "0.4"
 graphql_client = "0.11.0"
 hyper = "0.14"