diff --git a/rust-arkworks/Cargo.toml b/rust-arkworks/Cargo.toml
index 5772dce..1dc7a90 100644
--- a/rust-arkworks/Cargo.toml
+++ b/rust-arkworks/Cargo.toml
@@ -12,11 +12,11 @@ keywords = ["nullifier", "zero-knowledge", "ECDSA", "PLUME"]
 
 [dependencies]
 ark-ec = "~0.3.0"
-ark-ff = "0.3.0"
-ark-std = "0.3.0"
-ark-serialize = "0.3.0"
-ark-serialize-derive = "0.3.0"
-secp256k1 = { git = "https://github.com/geometryresearch/ark-secp256k1.git" }
+ark-ff = "~0.3.0"
+ark-std = "~0.3.0"
+ark-serialize = "~0.3.0"
+ark-serialize-derive = "~0.3.0"
+secp256k1 = { git = "https://github.com/geometryresearch/ark-secp256k1.git", version = "0.1.0" }
 rand_core = { version = "0.6", default-features = false, features = [
     "getrandom",
 ] }
diff --git a/rust-k256/tests/verification.rs b/rust-k256/tests/verification.rs
index 3ba177b..6b7d1e0 100644
--- a/rust-k256/tests/verification.rs
+++ b/rust-k256/tests/verification.rs
@@ -4,7 +4,7 @@
 
 use helpers::{gen_test_scalar_sk, test_gen_signals, PlumeVersion};
 use k256::elliptic_curve::sec1::ToEncodedPoint;
-use plume_crypto::{PlumeSignature, PlumeSignatureV1Fields, ProjectivePoint};
+use plume_rustcrypto::{PlumeSignature, PlumeSignatureV1Fields, ProjectivePoint};
 
 const G: ProjectivePoint = ProjectivePoint::GENERATOR;
 const M: &[u8; 29] = b"An example app message string";
@@ -158,7 +158,7 @@ mod helpers {
         let pt: ProjectivePoint = Secp256k1::hash_from_bytes::<ExpandMsgXmd<Sha256>>(
             &[s],
             //b"CURVE_XMD:SHA-256_SSWU_RO_"
-            &[plume_crypto::DST],
+            &[plume_rustcrypto::DST],
         )
         .unwrap();
         pt
@@ -208,7 +208,7 @@ mod helpers {
                     &pk.to_encoded_point(true).to_bytes().to_vec()
                 ].concat().as_slice()],
                 //b"CURVE_XMD:SHA-256_SSWU_RO_",
-                &[plume_crypto::DST],
+                &[plume_rustcrypto::DST],
             )
             .unwrap();