diff --git a/Cargo.lock b/Cargo.lock
index d4e115c..5a2ce06 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -971,18 +971,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.147"
+version = "1.0.149"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d193d69bae983fc11a79df82342761dfbf28a99fc8d203dca4c3c1b590948965"
+checksum = "256b9932320c590e707b94576e3cc1f7c9024d0ee6612dfbcf1cb106cbe8e055"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.147"
+version = "1.0.149"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f1d362ca8fc9c3e3a7484440752472d68a6caa98f1ab81d99b5dfe517cec852"
+checksum = "b4eae9b04cbffdfd550eb462ed33bc6a1b68c935127d008b27444d08380f94e4"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1126,9 +1126,9 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "syn"
-version = "1.0.102"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fcd952facd492f9be3ef0d0b7032a6e442ee9b361d4acc2b1d0c4aaa5f613a1"
+checksum = "60b9b43d45702de4c839cb9b51d9f529c5dd26a4aff255b42b1ebc03e88ee908"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index c2f90b8..104686c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 [dependencies]
 sendgrid = { version = "0.18.1", default-features = false, features = ["rustls", "blocking"] }
 serde_derive = "1.0.112"
-serde = "1.0.147"
+serde = "1.0.149"
 reqwest = { version = "0.11", default-features = false, features = ["json", "rustls-tls"] }
 tokio = { version = "1.22", features = ["full"] }
 serde_json = "1.0.89"