diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ddf01b269..9e1f17e33 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -44,5 +44,5 @@ jobs:
           cargo make --version || cargo install cargo-make
       - name: run test
         run: cargo make tests
-      - name: run test + feature u16limb_circuit
-        run: cargo make tests_v2
+      - name: run test w/o u16limb_circuit
+        run: cargo make tests_non_u16limb
diff --git a/Makefile.toml b/Makefile.toml
index 4776fa231..c572c8840 100644
--- a/Makefile.toml
+++ b/Makefile.toml
@@ -15,7 +15,7 @@ command = "cargo"
 env = { RUST_MIN_STACK = "33554432" }
 workspace = false
 
-[tasks.tests_v2]
+[tasks.tests_non_u16limb]
 args = [
   "test",
   # Run everything but 'benches'.
@@ -25,7 +25,7 @@ args = [
   "--examples",
   "--workspace",
   "--features",
-  "u16limb_circuit",
+  "goldilocks",
 ]
 command = "cargo"
 env = { RUST_MIN_STACK = "33554432" }
diff --git a/ceno_zkvm/Cargo.toml b/ceno_zkvm/Cargo.toml
index ea34ff7d2..ac33fae04 100644
--- a/ceno_zkvm/Cargo.toml
+++ b/ceno_zkvm/Cargo.toml
@@ -63,7 +63,7 @@ glob = "0.3"
 default = ["forbid_overflow", "nightly-features", "u16limb_circuit", "parallel"]
 flamegraph = ["pprof2/flamegraph", "pprof2/criterion"]
 forbid_overflow = []
-goldilocks = ["forbid_overflow", "nightly-features"]
+goldilocks = ["forbid_overflow", "nightly-features", "parallel"]
 jemalloc = ["dep:tikv-jemallocator", "dep:tikv-jemalloc-ctl"]
 jemalloc-prof = ["jemalloc", "tikv-jemallocator?/profiling"]
 nightly-features = [