diff --git a/Cargo.toml b/Cargo.toml
index 53308567..83c4f322 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,23 +13,13 @@ version = "0.11.0"
 edition = "2018"
 
 [dependencies]
-http = "0.1.18"
-serde_json = "1.0.40"
-serde_urlencoded = "0.6.1"
+http = "0.1.19"
+ruma-api-macros = { path = "ruma-api-macros", optional = true }
 ruma-identifiers = "0.14.0"
-
-[dependencies.ruma-api-macros]
-path = "ruma-api-macros"
-optional = true
-
-[dependencies.serde]
-version = "1.0.99"
-features = ["derive"]
-optional = true
-
-[dependencies.url]
-version = "2.1.0"
-optional = true
+serde = { version = "1.0.102", features = ["derive"], optional = true }
+serde_json = "1.0.41"
+serde_urlencoded = "0.6.1"
+url = { version = "2.1.0", optional = true }
 
 [features]
 default = ["with-ruma-api-macros"]
diff --git a/ruma-api-macros/Cargo.toml b/ruma-api-macros/Cargo.toml
index a379d8eb..c7c112f2 100644
--- a/ruma-api-macros/Cargo.toml
+++ b/ruma-api-macros/Cargo.toml
@@ -13,12 +13,9 @@ version = "0.8.0"
 edition = "2018"
 
 [dependencies]
-quote = "1.0.1"
-proc-macro2 = "1.0.1"
-
-[dependencies.syn]
-version = "1.0.2"
-features = ["full"]
+proc-macro2 = "1.0.6"
+quote = "1.0.2"
+syn = { version = "1.0.8", features = ["full"] }
 
 [lib]
 proc-macro = true