diff --git a/halo2/Cargo.toml b/halo2/Cargo.toml
index ffe105cf21..5785af5a9a 100644
--- a/halo2/Cargo.toml
+++ b/halo2/Cargo.toml
@@ -19,7 +19,7 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs", "--html-in-header", "katex-header.html"]
 
 [dependencies]
-halo2_proofs = { version = "0.2", path = "../halo2_proofs" }
+halo2_proofs = { version = "0.2", path = "../halo2_proofs", default-features = false }
 
 [lib]
 bench = false
diff --git a/halo2_gadgets/Cargo.toml b/halo2_gadgets/Cargo.toml
index 62b905e149..7604b5b7a7 100644
--- a/halo2_gadgets/Cargo.toml
+++ b/halo2_gadgets/Cargo.toml
@@ -26,7 +26,7 @@ arrayvec = "0.7.0"
 bitvec = "1"
 ff = "0.13"
 group = "0.13"
-halo2_proofs = { version = "0.2", path = "../halo2_proofs" }
+halo2_proofs = { version = "0.2", path = "../halo2_proofs", default-features = false }
 lazy_static = "1"
 pasta_curves = "0.5"
 proptest = { version = "1.0.0", optional = true }