diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.lock b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.lock
index 9a62aee1fa4359..a220eef78893d7 100644
--- a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.lock
+++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.lock
@@ -152,18 +152,18 @@ dependencies = [
 
 [[package]]
 name = "rb-sys"
-version = "0.9.87"
+version = "0.9.88"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "225103e3d69bbfe8831f9fd0d2461335f3a9dd06aa6e88bcb6d6970383494d06"
+checksum = "d11b0965e6df9ef800ac71efc46070960a119f92af1b64d6acd4c357dc139350"
 dependencies = [
  "rb-sys-build",
 ]
 
 [[package]]
 name = "rb-sys-build"
-version = "0.9.87"
+version = "0.9.88"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bacce8095a5167d5ede618bbd9353e9d9e2f32ddaf54be911106f0ee6baacf09"
+checksum = "5c0fce6e53552df8fcd3e4269d7944b0afa38db70d252bbf12caad454caf6d83"
 dependencies = [
  "bindgen",
  "lazy_static",
diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.toml b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.toml
index f99bc584667899..e104f1c07ec67b 100644
--- a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.toml
+++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-rb-sys = "0.9.87"
+rb-sys = "0.9.88"