diff --git a/Cargo.lock b/Cargo.lock
index 03ff344a1ec4a2ba10006da05f4e26d7c1f8c577..aa5906d534c938a8d792829301b7037cf29b0b2d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2852,18 +2852,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.135"
+version = "1.0.136"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cf9235533494ea2ddcdb794665461814781c53f19d87b76e571a1c35acbad2b"
+checksum = "ce31e24b01e1e524df96f1c2fdd054405f8d7376249a5110886fb4b658484789"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.135"
+version = "1.0.136"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dcde03d87d4c973c04be249e7d8f0b35db1c848c487bd43032808e59dd8328d"
+checksum = "08597e7152fcd306f41838ed3e37be9eaeed2b61c42e2117266a554fab4662f9"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 9ea01d7d582d1c79557785b869d5765d32546dbc..bddab035042ca40584c507a3970f23cd85842ca4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ rustc_version = "0.4.0"
 blake2 = "0.10.2"
 contract-metadata = { version = "0.5.0", path = "./metadata" }
 semver = { version = "1.0.4", features = ["serde"] }
-serde = { version = "1.0.135", default-features = false, features = ["derive"] }
+serde = { version = "1.0.136", default-features = false, features = ["derive"] }
 serde_json = "1.0.78"
 tempfile = "3.3.0"
 url = { version = "2.2.2", features = ["serde"] }
diff --git a/metadata/Cargo.toml b/metadata/Cargo.toml
index 84c7b1615c1c271a01e3ed1fb844a3654833b0fc..733a65b22b1a7e29e432090a05dcf387bdc857b6 100644
--- a/metadata/Cargo.toml
+++ b/metadata/Cargo.toml
@@ -20,7 +20,7 @@ path = "lib.rs"
 [dependencies]
 impl-serde = "0.3.2"
 semver = { version = "1.0.4", features = ["serde"] }
-serde = { version = "1.0.135", default-features = false, features = ["derive"] }
+serde = { version = "1.0.136", default-features = false, features = ["derive"] }
 serde_json = "1.0.78"
 url = { version = "2.2.2", features = ["serde"] }