diff --git a/Cargo.toml b/Cargo.toml
index 92561c73..da5f143a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ license = "MIT"
 name = "ruma-client-api"
 readme = "README.md"
 repository = "https://github.com/ruma/ruma-client-api"
-version = "0.4.0"
+version = "0.5.0-alpha.1"
 edition = "2018"
 
 [dependencies]
@@ -17,6 +17,6 @@ js_int = { version = "0.1.2", features = ["serde"] }
 ruma-api = "0.12.0-alpha.1"
 ruma-events = "0.15.1"
 ruma-identifiers = "0.14.0"
-serde = { version = "1.0.102", features = ["derive"] }
-serde_json = "1.0.41"
+serde = { version = "1.0.103", features = ["derive"] }
+serde_json = "1.0.42"
 url = { version = "2.1.0", features = ["serde"] }