diff --git a/serde-tests/Cargo.lock b/serde-tests/Cargo.lock
index 24d6462..a402684 100644
--- a/serde-tests/Cargo.lock
+++ b/serde-tests/Cargo.lock
@@ -2,18 +2,17 @@
 name = "serde-tests"
 version = "0.1.0"
 dependencies = [
- "serde 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_codegen 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_codegen 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.1.30",
 ]
 
 [[package]]
 name = "aster"
-version = "0.17.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "syntex_syntax 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -26,13 +25,13 @@ name = "kernel32-sys"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "libc"
-version = "0.2.11"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -42,20 +41,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "quasi"
-version = "0.11.0"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "syntex_syntax 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "quasi_codegen"
-version = "0.11.0"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aster 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aster 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -65,49 +66,83 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "0.7.6"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_codegen"
-version = "0.7.6"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aster 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "quasi 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "quasi_codegen 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aster 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quasi 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quasi_codegen 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_codegen_internals 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "serde_codegen_internals"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "syntex_errors 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "syntex"
-version = "0.33.0"
+version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "syntex_syntax 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "syntex_errors"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_pos 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "term 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "syntex_pos"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "syntex_syntax"
-version = "0.33.0"
+version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "term 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_pos 0.39.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "term 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "term"
-version = "0.2.14"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -115,7 +150,7 @@ name = "toml"
 version = "0.1.30"
 dependencies = [
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -125,7 +160,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "winapi"
-version = "0.2.7"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
diff --git a/serde-tests/Cargo.toml b/serde-tests/Cargo.toml
index aca29cb..a41747f 100644
--- a/serde-tests/Cargo.toml
+++ b/serde-tests/Cargo.toml
@@ -5,11 +5,11 @@ authors = ["Alex Crichton <alex@alexcrichton.com>"]
 build = "build.rs"
 
 [dependencies]
-serde = "0.7"
+serde = "0.8"
 toml = { path = "..", features = ["serde"] }
 
 [build-dependencies]
-serde_codegen = "0.7"
+serde_codegen = "0.8"
 
 [lib]
 name = "serde_tests"