diff --git a/.github/actions/setup-rust/action.yml b/.github/actions/setup-rust/action.yml
index bdb930f5..4e2645f6 100644
--- a/.github/actions/setup-rust/action.yml
+++ b/.github/actions/setup-rust/action.yml
@@ -71,3 +71,4 @@ runs:
         # Only cache the `.cargo` directory; not build artifacts.
         cache-targets: "false"
         cache-provider: "buildjet"
+        prefix-key: "v1-rust" # TODO(nipunn) remove
diff --git a/Cargo.toml b/Cargo.toml
index 5df28eac..a5ba0e85 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -168,7 +168,7 @@ codegen-units = 16
 
 [profile.dev.package.digest]
 opt-level = 3
-codegen-units = 8
+codegen-units = 16
 
 [profile.dev.package.num-bigint-dig]
 opt-level = 3