diff --git a/lang/rust/Cargo.lock b/lang/rust/Cargo.lock
index 59bff7b6a1a..103a5f8540c 100644
--- a/lang/rust/Cargo.lock
+++ b/lang/rust/Cargo.lock
@@ -870,18 +870,18 @@ checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
 
 [[package]]
 name = "serde"
-version = "1.0.164"
+version = "1.0.166"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e8c8cf938e98f769bc164923b06dce91cea1751522f46f8466461af04c9027d"
+checksum = "d01b7404f9d441d3ad40e6a636a7782c377d2abdbe4fa2440e2edcc2f4f10db8"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.164"
+version = "1.0.166"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9735b638ccc51c28bf6914d90a2e9725b377144fc612c49a611fddd1b631d68"
+checksum = "5dd83d6dde2b6b2d466e14d9d1acce8816dedee94f735eac6395808b3483c6d6"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -890,9 +890,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.99"
+version = "1.0.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46266871c240a00b8f503b877622fe33430b3c7d963bdc0f2adc511e54a1eae3"
+checksum = "0f1e14e89be7aa4c4b78bdbdc9eb5bf8517829a600ae8eaa39a6e1d960b5185c"
 dependencies = [
  "itoa",
  "ryu",
diff --git a/lang/rust/avro/Cargo.toml b/lang/rust/avro/Cargo.toml
index acaf7f72e3e..3ba62850fe3 100644
--- a/lang/rust/avro/Cargo.toml
+++ b/lang/rust/avro/Cargo.toml
@@ -65,7 +65,7 @@ log = { default-features = false, version = "0.4.19" }
 num-bigint = { default-features = false, version = "0.4.3" }
 regex = { default-features = false, version = "1.8.4", features = ["std", "perf"] }
 serde = { default-features = false, version = "1.0.164", features = ["derive"] }
-serde_json = { default-features = false, version = "1.0.99", features = ["std"] }
+serde_json = { default-features = false, version = "1.0.100", features = ["std"] }
 snap = { default-features = false, version = "1.1.0", optional = true }
 strum = { default-features = false, version = "0.25.0" }
 strum_macros = { default-features = false, version = "0.25.0" }
diff --git a/lang/rust/avro_derive/Cargo.toml b/lang/rust/avro_derive/Cargo.toml
index 5b8df915bcf..b8835a87a86 100644
--- a/lang/rust/avro_derive/Cargo.toml
+++ b/lang/rust/avro_derive/Cargo.toml
@@ -36,7 +36,7 @@ proc-macro = true
 darling = { default-features = false, version = "0.20.1" }
 proc-macro2 = { default-features = false, version = "1.0.63" }
 quote = { default-features = false, version = "1.0.29" }
-serde_json = { default-features = false, version = "1.0.99", features = ["std"] }
+serde_json = { default-features = false, version = "1.0.100", features = ["std"] }
 syn = { default-features = false, version = "2.0.23", features = ["full", "fold"] }
 
 [dev-dependencies]