diff --git a/ci/kache-hosted-canary/Cargo.lock b/ci/kache-hosted-canary/Cargo.lock
index 8894b14..e927419 100644
--- a/ci/kache-hosted-canary/Cargo.lock
+++ b/ci/kache-hosted-canary/Cargo.lock
@@ -3,5 +3,5 @@
 version = 4
 
 [[package]]
-name = "kache-hosted-canary"
+name = "kache_hosted_canary"
 version = "0.0.0"
diff --git a/ci/kache-hosted-canary/Cargo.toml b/ci/kache-hosted-canary/Cargo.toml
index ce6214c..0f42ec3 100644
--- a/ci/kache-hosted-canary/Cargo.toml
+++ b/ci/kache-hosted-canary/Cargo.toml
@@ -1,5 +1,7 @@
 [package]
-name = "kache-hosted-canary"
+# Kache 0.28.1 sync matches Cargo package names against rustc crate names.
+# Use underscores so the workspace-scoped upload filter matches this fixture.
+name = "kache_hosted_canary"
 version = "0.0.0"
 edition = "2024"
 rust-version = "1.97.1"