diff --git a/arithmetic/Cargo.toml b/arithmetic/Cargo.toml
index 99192dc0..3fd696c6 100644
--- a/arithmetic/Cargo.toml
+++ b/arithmetic/Cargo.toml
@@ -15,7 +15,7 @@ rand_chacha = { version = "0.3.0", default-features = false }
 rayon = { version = "1.5.2", default-features = false, optional = true }
 
 [dev-dependencies]
-ark-ec = { version = "^0.4.0", default-features = false }
+ark-ec = { version = "^0.5.0", default-features = false }
 criterion = "0.5.1"
 
 [features]
diff --git a/hyperplonk/Cargo.toml b/hyperplonk/Cargo.toml
index 90a8cda0..8400787e 100644
--- a/hyperplonk/Cargo.toml
+++ b/hyperplonk/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 
 [dependencies]
 arithmetic = { path = "../arithmetic" }
-ark-ec = { version = "^0.4.0", default-features = false }
+ark-ec = { version = "^0.5.0", default-features = false }
 ark-ff = { version = "^0.4.0", default-features = false }
 ark-poly = { version = "^0.4.0", default-features = false }
 ark-serialize = { version = "^0.4.0", default-features = false, features = [ "derive" ] }
diff --git a/subroutines/Cargo.toml b/subroutines/Cargo.toml
index 78d9260f..fdf865cd 100644
--- a/subroutines/Cargo.toml
+++ b/subroutines/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 arithmetic = { path = "../arithmetic" }
 ark-bls12-381 = { version = "0.4.0", default-features = false, features = [ "curve" ] }
-ark-ec = { version = "^0.4.0", default-features = false }
+ark-ec = { version = "^0.5.0", default-features = false }
 ark-ff = { version = "^0.4.0", default-features = false }
 ark-poly = { version = "^0.4.0", default-features = false }
 ark-serialize =  { version = "^0.4.0", default-features = false }