diff --git a/serde_codegen/Cargo.toml b/serde_codegen/Cargo.toml
index 6e8f1564..80e85018 100644
--- a/serde_codegen/Cargo.toml
+++ b/serde_codegen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "serde_codegen"
-version = "0.6.2"
+version = "0.6.3"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Macros to auto-generate implementations for the serde framework"
@@ -15,12 +15,12 @@ nightly = ["quasi_macros"]
 with-syntex = ["quasi/with-syntex", "quasi_codegen", "quasi_codegen/with-syntex", "syntex", "syntex_syntax"]
 
 [build-dependencies]
-quasi_codegen = { verision = "^0.3.6", optional = true }
+quasi_codegen = { verision = "^0.3.7", optional = true }
 syntex = { version = "^0.17.0", optional = true }
 
 [dependencies]
-aster = { version = "^0.6.0", default-features = false }
-quasi = { verision = "^0.3.5", default-features = false }
-quasi_macros = { version = "^0.3.5", optional = true }
+aster = { version = "^0.7.0", default-features = false }
+quasi = { verision = "^0.3.7", default-features = false }
+quasi_macros = { version = "^0.3.7", optional = true }
 syntex = { version = "^0.17.0", optional = true }
-syntex_syntax = { version = "^0.19.1", optional = true }
+syntex_syntax = { version = "^0.20.0", optional = true }
diff --git a/serde_tests/Cargo.toml b/serde_tests/Cargo.toml
index 8eb41025..54c3bd13 100644
--- a/serde_tests/Cargo.toml
+++ b/serde_tests/Cargo.toml
@@ -12,7 +12,7 @@ build = "build.rs"
 
 [build-dependencies]
 syntex = { version = "^0.17.0" }
-syntex_syntax = { version = "^0.19.1" }
+syntex_syntax = { version = "^0.20.0" }
 serde_codegen = { version = "*", path = "../serde_codegen", features = ["with-syntex"] }
 
 [dev-dependencies]