diff --git a/Cargo.lock b/Cargo.lock
index c5cdc94..5e7360a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -53,8 +53,8 @@ version = "0.3.0"
 source = "git+https://github.com/arkworks-rs/curves?rev=677b4ae751a274037880ede86e9b6f30f62635af#677b4ae751a274037880ede86e9b6f30f62635af"
 dependencies = [
  "ark-ec",
- "ark-ff",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-std 0.3.0",
 ]
 
 [[package]]
@@ -64,8 +64,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "65be532f9dd1e98ad0150b037276cde464c6f371059e6dd02c0222395761f6aa"
 dependencies = [
  "ark-ec",
- "ark-ff",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-std 0.3.0",
 ]
 
 [[package]]
@@ -75,8 +75,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ea691771ebbb28aea556c044e2e5c5227398d840cee0c34d4d20fa8eb2689e8c"
 dependencies = [
  "ark-ec",
- "ark-ff",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-std 0.3.0",
 ]
 
 [[package]]
@@ -86,8 +86,8 @@ source = "git+https://github.com/arkworks-rs/curves?rev=677b4ae751a274037880ede8
 dependencies = [
  "ark-bls12-377",
  "ark-ec",
- "ark-ff",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-std 0.3.0",
 ]
 
 [[package]]
@@ -96,9 +96,9 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dea978406c4b1ca13c2db2373b05cc55429c3575b8b21f1b9ee859aa5b03dd42"
 dependencies = [
- "ark-ff",
- "ark-serialize",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "derivative",
  "num-traits",
  "rayon",
@@ -112,8 +112,8 @@ source = "git+https://github.com/arkworks-rs/curves?rev=677b4ae751a274037880ede8
 dependencies = [
  "ark-bls12-377",
  "ark-ec",
- "ark-ff",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-std 0.3.0",
 ]
 
 [[package]]
@@ -124,8 +124,8 @@ checksum = "43b7ada17db3854f5994e74e60b18e10e818594935ee7e1d329800c117b32970"
 dependencies = [
  "ark-bls12-381",
  "ark-ec",
- "ark-ff",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-std 0.3.0",
 ]
 
 [[package]]
@@ -136,8 +136,8 @@ checksum = "7fdc786b806fdbff4abebb08ec2fcb50cfe3941918e57120ab121228452903fd"
 dependencies = [
  "ark-bn254",
  "ark-ec",
- "ark-ff",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-std 0.3.0",
 ]
 
 [[package]]
@@ -146,16 +146,36 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6b3235cc41ee7a12aaaf2c575a2ad7b46713a8a50bda2fc3b003a04845c05dd6"
 dependencies = [
- "ark-ff-asm",
- "ark-ff-macros",
- "ark-serialize",
- "ark-std",
+ "ark-ff-asm 0.3.0",
+ "ark-ff-macros 0.3.0",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "derivative",
  "num-bigint",
  "num-traits",
  "paste",
  "rayon",
- "rustc_version",
+ "rustc_version 0.3.3",
+ "zeroize",
+]
+
+[[package]]
+name = "ark-ff"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec847af850f44ad29048935519032c33da8aa03340876d351dfab5660d2966ba"
+dependencies = [
+ "ark-ff-asm 0.4.2",
+ "ark-ff-macros 0.4.2",
+ "ark-serialize 0.4.2",
+ "ark-std 0.4.0",
+ "derivative",
+ "digest 0.10.5",
+ "itertools",
+ "num-bigint",
+ "num-traits",
+ "paste",
+ "rustc_version 0.4.0",
  "zeroize",
 ]
 
@@ -169,6 +189,16 @@ dependencies = [
  "syn 1.0.103",
 ]
 
+[[package]]
+name = "ark-ff-asm"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ed4aa4fe255d0bc6d79373f7e31d2ea147bcf486cba1be5ba7ea85abdb92348"
+dependencies = [
+ "quote",
+ "syn 1.0.103",
+]
+
 [[package]]
 name = "ark-ff-macros"
 version = "0.3.0"
@@ -181,15 +211,28 @@ dependencies = [
  "syn 1.0.103",
 ]
 
+[[package]]
+name = "ark-ff-macros"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7abe79b0e4288889c4574159ab790824d0033b9fdcb2a112a3182fac2e514565"
+dependencies = [
+ "num-bigint",
+ "num-traits",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.103",
+]
+
 [[package]]
 name = "ark-poly"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7b0f78f47537c2f15706db7e98fe64cc1711dbf9def81218194e17239e53e5aa"
 dependencies = [
- "ark-ff",
- "ark-serialize",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "derivative",
  "hashbrown 0.11.2",
  "rayon",
@@ -202,10 +245,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d6c2b318ee6e10f8c2853e73a83adc0ccb88995aa978d8a3408d492ab2ee671"
 dependencies = [
  "ark-serialize-derive",
- "ark-std",
+ "ark-std 0.3.0",
  "digest 0.9.0",
 ]
 
+[[package]]
+name = "ark-serialize"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adb7b85a02b83d2f22f89bd5cac66c9c89474240cb6207cb1efc16d098e822a5"
+dependencies = [
+ "ark-std 0.4.0",
+ "digest 0.10.5",
+ "num-bigint",
+]
+
 [[package]]
 name = "ark-serialize-derive"
 version = "0.3.0"
@@ -228,6 +282,16 @@ dependencies = [
  "rayon",
 ]
 
+[[package]]
+name = "ark-std"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94893f1e0c6eeab764ade8dc4c0db24caf4fe7cbbaafc0eba0a9030f447b5185"
+dependencies = [
+ "num-traits",
+ "rand",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -711,10 +775,10 @@ dependencies = [
  "ark-bn254",
  "ark-bw6-761",
  "ark-ec",
- "ark-ff",
+ "ark-ff 0.3.0",
  "ark-poly",
- "ark-serialize",
- "ark-std",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "derivative",
  "displaydoc",
  "downcast-rs",
@@ -746,10 +810,10 @@ dependencies = [
  "ark-ed-on-bls12-377",
  "ark-ed-on-bls12-381",
  "ark-ed-on-bn254",
- "ark-ff",
+ "ark-ff 0.3.0",
  "ark-poly",
- "ark-serialize",
- "ark-std",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "blst",
  "crypto_box",
  "derivative",
@@ -778,10 +842,10 @@ dependencies = [
  "ark-bn254",
  "ark-bw6-761",
  "ark-ec",
- "ark-ff",
+ "ark-ff 0.3.0",
  "ark-poly",
- "ark-serialize",
- "ark-std",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "derivative",
  "displaydoc",
  "downcast-rs",
@@ -801,9 +865,9 @@ source = "git+https://github.com/EspressoSystems/jellyfish.git?rev=64f55becffe0b
 dependencies = [
  "anyhow",
  "ark-ec",
- "ark-ff",
- "ark-serialize",
- "ark-std",
+ "ark-ff 0.3.0",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "digest 0.10.5",
  "displaydoc",
  "jf-utils-derive",
@@ -818,7 +882,7 @@ name = "jf-utils-derive"
 version = "0.1.2"
 source = "git+https://github.com/EspressoSystems/jellyfish.git?rev=64f55becffe0b93bfef2c6dc49274ef54d5ff6fc#64f55becffe0b93bfef2c6dc49274ef54d5ff6fc"
 dependencies = [
- "ark-std",
+ "ark-std 0.3.0",
  "quote",
  "syn 1.0.103",
 ]
@@ -1110,7 +1174,16 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0dfe2087c51c460008730de8b57e6a320782fbfb312e1f4d520e6c6fae155ee"
 dependencies = [
- "semver",
+ "semver 0.11.0",
+]
+
+[[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver 1.0.17",
 ]
 
 [[package]]
@@ -1143,6 +1216,12 @@ dependencies = [
  "semver-parser",
 ]
 
+[[package]]
+name = "semver"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bebd363326d05ec3e2f532ab7660680f3b02130d780c299bca73469d521bc0ed"
+
 [[package]]
 name = "semver-parser"
 version = "0.10.2"
@@ -1400,9 +1479,9 @@ dependencies = [
  "ark-bw6-761",
  "ark-ec",
  "ark-ed-on-bls12-377",
- "ark-ff",
- "ark-serialize",
- "ark-std",
+ "ark-ff 0.4.2",
+ "ark-serialize 0.3.0",
+ "ark-std 0.3.0",
  "chacha20poly1305 0.9.1",
  "curve25519-dalek 4.0.0-pre.1",
  "displaydoc",
diff --git a/Cargo.toml b/Cargo.toml
index 9559aea..8ffb20f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ ark-bls12-377 = { git = "https://github.com/arkworks-rs/curves", default-feature
 ark-bw6-761 = { git = "https://github.com/arkworks-rs/curves", rev = "677b4ae751a274037880ede86e9b6f30f62635af" }
 ark-ec = { version = "0.3.0", default-features = false }
 ark-ed-on-bls12-377 = { git = "https://github.com/arkworks-rs/curves", default-features = false, rev = "677b4ae751a274037880ede86e9b6f30f62635af" }
-ark-ff = { version = "0.3.0", default-features = false }
+ark-ff = { version = "0.4.2", default-features = false }
 ark-serialize = { version = "0.3.0", default-features = false }
 ark-std = { version = "0.3.0", default-features = false }
 chacha20poly1305 = "0.9.0"