diff --git a/lang/rust/Cargo.lock b/lang/rust/Cargo.lock
index d95cf408eee..f0a24ce88c1 100644
--- a/lang/rust/Cargo.lock
+++ b/lang/rust/Cargo.lock
@@ -100,7 +100,7 @@ version = "0.15.0"
 dependencies = [
  "anyhow",
  "color-backtrace",
- "ctor 0.2.3",
+ "ctor",
  "env_logger",
  "lazy_static",
  "log",
@@ -339,16 +339,6 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "ctor"
-version = "0.1.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d2301688392eb071b0bf1a37be05c469d3cc4dbbd95df672fe28ab021e6a096"
-dependencies = [
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "ctor"
 version = "0.2.3"
@@ -687,15 +677,6 @@ version = "6.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b7820b9daea5457c9f21c69448905d723fbd21136ccf521748f23fd49e723ee"
 
-[[package]]
-name = "output_vt100"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "628223faebab4e3e40667ee0b2336d34a5b960ff60ea743ddfdbcf7770bcfb66"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "pkg-config"
 version = "0.3.25"
@@ -710,13 +691,11 @@ checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "pretty_assertions"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a25e9bcb20aa780fd0bb16b72403a9064d6b3f22f026946029acb941a50af755"
+checksum = "af7cee1a6c8a5b9208b3cb1061f10c0cb689087b3d8ce85fb9d2dd7a29b6ba66"
 dependencies = [
- "ctor 0.1.26",
  "diff",
- "output_vt100",
  "yansi",
 ]
 
diff --git a/lang/rust/avro/Cargo.toml b/lang/rust/avro/Cargo.toml
index 97bb881b87a..b2e34c2317c 100644
--- a/lang/rust/avro/Cargo.toml
+++ b/lang/rust/avro/Cargo.toml
@@ -88,5 +88,5 @@ apache-avro-test-helper = { default-features = false, version = "0.15.0", path =
 criterion = { default-features = false, version = "0.4.0" }
 hex-literal = { default-features = false, version = "0.4.1" }
 md-5 = { default-features = false, version = "0.10.5" }
-pretty_assertions = { default-features = false, version = "1.3.0", features = ["std"] }
+pretty_assertions = { default-features = false, version = "1.4.0", features = ["std"] }
 sha2 = { default-features = false, version = "0.10.7" }