diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock
index f8cf3854c1..1e222927ce 100644
--- a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock
+++ b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock
@@ -144,18 +144,18 @@ dependencies = [
 
 [[package]]
 name = "rb-sys"
-version = "0.9.61"
+version = "0.9.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2825b89cd8ac35cc87cdafa5e7225043111e4f12990dfaf53a42b4a8a3f3e458"
+checksum = "cc8945662df8083245deda89e236647173cc7ad750f481ddcd7bbfd3afe3fa5e"
 dependencies = [
  "rb-sys-build",
 ]
 
 [[package]]
 name = "rb-sys-build"
-version = "0.9.61"
+version = "0.9.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9b1bfcc3b289d4eb6ac5e45e83ae04a6a3bd9af14370c7048edf88d68dbb8dc"
+checksum = "ae8c3cdf9edc3908ee1555b7a1bca58ee1b499439b32cd1c1ec3e66736a8df48"
 dependencies = [
  "bindgen",
  "regex",
diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml
index a15fb5d662..0b18623a26 100644
--- a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml
+++ b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-rb-sys = "0.9.61"
+rb-sys = "0.9.64"