diff --git a/Cargo.lock b/Cargo.lock
index 75e89d42c3280..d3e945237b818 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -12773,7 +12773,7 @@ name = "vector-config-common"
 version = "0.1.0"
 dependencies = [
  "convert_case 0.8.0",
- "darling 0.20.11",
+ "darling 0.21.3",
  "proc-macro2 1.0.106",
  "quote 1.0.44",
  "serde",
@@ -12786,7 +12786,7 @@ dependencies = [
 name = "vector-config-macros"
 version = "0.1.0"
 dependencies = [
- "darling 0.20.11",
+ "darling 0.21.3",
  "proc-macro2 1.0.106",
  "quote 1.0.44",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index ed8631a6d1e94..0a0552305c5d5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -158,7 +158,7 @@ colored = { version = "3.1.1", default-features = false }
 const-str = { version = "1.1.0", default-features = false }
 criterion = "0.8"
 crossbeam-utils = { version = "0.8.21", default-features = false }
-darling = { version = "0.20.11", default-features = false, features = ["suggestions"] }
+darling = { version = "0.21.3", default-features = false, features = ["suggestions"] }
 dashmap = { version = "6.1.0", default-features = false }
 derivative = { version = "2.2.0", default-features = false }
 exitcode = { version = "1.1.2", default-features = false }