diff --git a/Cargo.lock b/Cargo.lock
index 1106765..eb334a7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -402,9 +402,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.101"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de"
+checksum = "5ee95bc4ef87b8d5ba32e8b7714ccc834865276eab0aed5c9958d00ec45f49e8"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 6cca47b..0bfffe9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ colored_json = "5.0.0"
 getopts = "0.2.21"
 libc = { version = "0.2.126", default-features = false }
 peg = "0.8.5"
-proc-macro2 = "1.0.6"
+proc-macro2 = "1.0.103"
 quote = "1.0.2"
 serde = "1.0.102"
 serde_derive = "1.0.102"