diff --git a/json/json_decode_error/Cargo.toml b/json/json_decode_error/Cargo.toml
index c80a36af..320ea8c0 100644
--- a/json/json_decode_error/Cargo.toml
+++ b/json/json_decode_error/Cargo.toml
@@ -5,5 +5,5 @@ authors = ["Stig Johan Berggren <stigjb@gmail.com>"]
 edition = "2018"
 
 [dependencies]
-actix-web = "3"
+actix-web = "4.0.0-beta.21"
 serde = "1"