diff --git a/Cargo.lock b/Cargo.lock
index 33e1cb9..851c35d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,297 +1,286 @@
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diff --git a/Cargo.toml b/Cargo.toml
index fd52101..163ce5a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,5 +22,5 @@ travis-ci = { repository = "Metaswitch/cargo-swagger", branch = "master" }
 docopt = "0.8.3"
 error-chain = "0.11.0"
 serde = "1.0.38"
-serde_derive = "1.0.38"
+serde_derive = "1.0.125"
 serde_yaml = "0.7.3"