diff --git a/Cargo.lock b/Cargo.lock
index bca0c2b..df50445 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -894,9 +894,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.66"
+version = "1.0.67"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "336b10da19a12ad094b59d870ebde26a45402e5b470add4b5fd03c5048a32127"
+checksum = "a7f9e390c27c3c0ce8bc5d725f6e4d30a29d26659494aa4b17535f7522c5c950"
 dependencies = [
  "itoa",
  "ryu",
diff --git a/Cargo.toml b/Cargo.toml
index 069cc7d..90c7340 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,8 +9,8 @@ sendgrid = { version = "0.17.3", default-features = false, features = ["rustls",
 serde_derive = "1.0.112"
 serde = "1.0.130"
 reqwest = { version = "0.11", default-features = false, features = ["json", "rustls-tls"] }
-tokio = { version = "1.11", features = ["full"] }
-serde_json = "1.0.66"
+tokio = { version = "1.10", features = ["full"] }
+serde_json = "1.0.67"
 log = "0.4"
 pretty_env_logger = "0.4.0"
 regex = "1.5.4"