diff --git a/Cargo.lock b/Cargo.lock
index 3b405283961ea2e688950a7f3ff0998166e746e9..edcec8e76344bc391d2b6db4c6e0406a607d38d3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2772,18 +2772,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.126"
+version = "1.0.127"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
+checksum = "f03b9878abf6d14e6779d3f24f07b2cfa90352cfec4acc5aab8f1ac7f146fae8"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.126"
+version = "1.0.127"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
+checksum = "a024926d3432516606328597e0f224a51355a493b49fdd67e9209187cbe55ecc"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index e1fe743692f612df0b8dcc60305ee1d562103371..4016d853fea35cdd677d4a082f791cf30af18783 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ rustc_version = "0.4.0"
 blake2 = "0.9.1"
 contract-metadata = { version = "0.3.0", path = "./metadata" }
 semver = { version = "1.0.4", features = ["serde"] }
-serde = { version = "1.0.126", default-features = false, features = ["derive"] }
+serde = { version = "1.0.127", default-features = false, features = ["derive"] }
 serde_json = "1.0.66"
 tempfile = "3.2.0"
 url = { version = "2.2.2", features = ["serde"] }
diff --git a/metadata/Cargo.toml b/metadata/Cargo.toml
index f4fedacae5ea35b1ab4745c5e8643e6585e77231..4daa881c98f1ad6757911483c2a01110164bc479 100644
--- a/metadata/Cargo.toml
+++ b/metadata/Cargo.toml
@@ -18,7 +18,7 @@ path = "lib.rs"
 
 [dependencies]
 semver = { version = "1.0.4", features = ["serde"] }
-serde = { version = "1.0.126", default-features = false, features = ["derive"] }
+serde = { version = "1.0.127", default-features = false, features = ["derive"] }
 serde_json = "1.0.66"
 url = { version = "2.2.2", features = ["serde"] }