diff --git a/Cargo.lock b/Cargo.lock
index d056995..8c675da 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -829,9 +829,9 @@ dependencies = [
 
 [[package]]
 name = "serde-aux"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0a77223b653fa95f3f9864f3eb25b93e4ed170687eb42d85b6b98af21d5e1de"
+checksum = "c79c1a5a310c28bf9f7a4b9bd848553051120d80a5952f993c7eb62f6ed6e4c5"
 dependencies = [
  "chrono",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index d154449..14a33e6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ chrono = "0.4"
 futures = "0.3"
 log = "0.4"
 pretty_env_logger = "0.4"
-serde-aux = "3.0"
+serde-aux = "4.0"
 serde_yaml = "0.9"
 thiserror = "1.0"