diff --git a/lang/rust/Cargo.lock b/lang/rust/Cargo.lock
index 60f51a1c54c..a0988c9a5a7 100644
--- a/lang/rust/Cargo.lock
+++ b/lang/rust/Cargo.lock
@@ -483,12 +483,6 @@ dependencies = [
  "log",
 ]
 
-[[package]]
-name = "equivalent"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
-
 [[package]]
 name = "errno"
 version = "0.3.8"
@@ -670,16 +664,6 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
-[[package]]
-name = "indexmap"
-version = "2.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
-dependencies = [
- "equivalent",
- "hashbrown",
-]
-
 [[package]]
 name = "is-terminal"
 version = "0.4.10"
@@ -938,15 +922,6 @@ dependencies = [
  "yansi",
 ]
 
-[[package]]
-name = "proc-macro-crate"
-version = "3.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d37c51ca738a55da99dc0c4a34860fd675453b8b36209178c2249bb13651284"
-dependencies = [
- "toml_edit",
-]
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.84"
@@ -1084,9 +1059,9 @@ checksum = "3582f63211428f83597b51b2ddb88e2a91a9d52d12831f9d08f5e624e8977422"
 
 [[package]]
 name = "rstest"
-version = "0.20.0"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27059f51958c5f8496a6f79511e7c0ac396dd815dc8894e9b6e2efb5779cf6f0"
+checksum = "9afd55a67069d6e434a95161415f5beeada95a01c7b815508a82dcb0e1593682"
 dependencies = [
  "rstest_macros",
  "rustc_version",
@@ -1094,13 +1069,12 @@ dependencies = [
 
 [[package]]
 name = "rstest_macros"
-version = "0.20.0"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6132d64df104c0b3ea7a6ad7766a43f587bd773a4a9cf4cd59296d426afaf3a"
+checksum = "4165dfae59a39dd41d8dec720d3cbfbc71f69744efb480a3920f5d4e0cc6798d"
 dependencies = [
  "cfg-if",
  "glob",
- "proc-macro-crate",
  "proc-macro2",
  "quote",
  "regex",
@@ -1340,23 +1314,6 @@ dependencies = [
  "serde_json",
 ]
 
-[[package]]
-name = "toml_datetime"
-version = "0.6.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4badfd56924ae69bcc9039335b2e017639ce3f9b001c393c1b2d1ef846ce2cbf"
-
-[[package]]
-name = "toml_edit"
-version = "0.21.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a8534fd7f78b5405e860340ad6575217ce99f38d4d5c8f2442cb5ecb50090e1"
-dependencies = [
- "indexmap",
- "toml_datetime",
- "winnow",
-]
-
 [[package]]
 name = "typed-builder"
 version = "0.18.2"
@@ -1681,15 +1638,6 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
-[[package]]
-name = "winnow"
-version = "0.5.40"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "xz2"
 version = "0.1.7"
diff --git a/lang/rust/avro/Cargo.toml b/lang/rust/avro/Cargo.toml
index 380d981333f..9de6477bd25 100644
--- a/lang/rust/avro/Cargo.toml
+++ b/lang/rust/avro/Cargo.toml
@@ -91,7 +91,7 @@ pretty_assertions = { default-features = false, version = "1.4.0", features = ["
 serial_test = "3.1.1"
 sha2 = { default-features = false, version = "0.10.8" }
 paste = { default-features = false, version = "1.0.15" }
-rstest = { default-features = false, version = "0.20.0" }
+rstest = { default-features = false, version = "0.21.0" }
 
 [package.metadata.docs.rs]
 all-features = true