Fix CI fail
diff --git a/.travis.yml b/.travis.yml
index 80dce16..b90ada4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -43,11 +43,11 @@
 
 script:
   - if [ "$TEST" = 1 ]; then cargo test --all --all-features; fi
-  - build
-  - build --features full
-  - build --no-default-features --features derive
-  - build --no-default-features --features full
-  - build --all-features
+  - cargo build
+  - cargo build --features full
+  - cargo build --no-default-features --features derive
+  - cargo build --no-default-features --features full
+  - cargo build --all-features
 
 notifications:
   email:
diff --git a/Cargo.toml b/Cargo.toml
index 1d230f3..77ee804 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,17 +16,14 @@
 members = ["examples/const_fn", "examples/const_fn_test"]
 
 [dependencies]
-proc-macro2 = "0.4.4" # https://github.com/dtolnay/syn/blob/master/Cargo.toml
-quote = "0.6" # https://github.com/dtolnay/syn/blob/master/Cargo.toml
+proc-macro2 = "0.4.19"
+quote = "0.6"
 
 [dependencies.syn]
 version = "0.15.22"
 default-features = false
 features = ["parsing", "printing", "proc-macro"]
 
-[dev-dependencies]
-quote = "0.6.8"
-
 [features]
 default = ["derive", "clone-impls"]
 
diff --git a/examples/const_fn/lib.rs b/examples/const_fn/lib.rs
index fcdecf5..d3e0cf8 100644
--- a/examples/const_fn/lib.rs
+++ b/examples/const_fn/lib.rs
@@ -2,13 +2,14 @@
 
 extern crate proc_macro;
 extern crate proc_macro2;
+#[macro_use]
 extern crate quote;
 extern crate syn;
 extern crate syn_mid;
 
 use proc_macro::TokenStream;
 use proc_macro2::TokenStream as TokenStream2;
-use quote::{quote, ToTokens};
+use quote::ToTokens;
 use syn::{parse_macro_input, parse_quote};
 use syn_mid::ItemFn;