diff --git a/Cargo.lock b/Cargo.lock
index bc2a58ddc42dc..6f2eefc50080e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8315,12 +8315,13 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.120"
+version = "1.0.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e0d21c9a8cae1235ad58a00c11cb40d4b1e5c784f1ef2c537876ed6ffd8b7c5"
+checksum = "4ab380d7d9f22ef3f21ad3e6c1ebe8e4fc7a2000ccba2e4d71fc96f15b2cb609"
 dependencies = [
  "indexmap 2.2.6",
  "itoa",
+ "memchr",
  "ryu",
  "serde",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 25bacde86d29f..3609356f7f566 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -139,7 +139,7 @@ metrics-util = { version = "0.16.3", default-features = false, features = ["regi
 pin-project = { version = "1.1.5", default-features = false }
 proptest = { version = "1.5" }
 proptest-derive = { version = "0.4.0" }
-serde_json = { version = "1.0.120", default-features = false, features = ["raw_value", "std"] }
+serde_json = { version = "1.0.121", default-features = false, features = ["raw_value", "std"] }
 serde = { version = "1.0.204", default-features = false, features = ["alloc", "derive", "rc"] }
 toml = { version = "0.8.16", default-features = false, features = ["display", "parse"] }
 vrl = { version = "0.17.0", features = ["arbitrary", "cli", "test", "test_framework"] }